Home / 91,943.40-138,044.70-56,951.40

Finding the Fourth Proportional to 91,943.40, 138,044.70 and 56,951.40

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Solution

The fourth proportional to 91,943.40, 138,044.70 and 56,951.40 is: 85,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,943.40 : 138,044.70 = 56,951.40 : x
  2. Step 2: Convert to fraction form
    91,943.40/138,044.70 = 56,951.40/x
  3. Step 3: Cross multiply
    91,943.40x = 138,044.70 × 56,951.40
  4. Step 4: Simplify right side
    91,943.40x = 7,861,838,927.58
  5. Step 5: Solve for x
    x = 7,861,838,927.58/91,943.40
  6. Step 6: Final answer
    x = 85,507.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.