Home / 91,071,256.45-125,679,331.05-49,818,149.23

Finding the Fourth Proportional to 91,071,256.45, 125,679,331.05 and 49,818,149.23

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Solution

The fourth proportional to 91,071,256.45, 125,679,331.05 and 49,818,149.23 is: 68,749,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,071,256.45 : 125,679,331.05 = 49,818,149.23 : x
  2. Step 2: Convert to fraction form
    91,071,256.45/125,679,331.05 = 49,818,149.23/x
  3. Step 3: Cross multiply
    91,071,256.45x = 125,679,331.05 × 49,818,149.23
  4. Step 4: Simplify right side
    91,071,256.45x = 6,261,111,669,375,472
  5. Step 5: Solve for x
    x = 6,261,111,669,375,472/91,071,256.45
  6. Step 6: Final answer
    x = 68,749,591.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.