Home / 91,110.43-125,790.93-57,165.49

Finding the Fourth Proportional to 91,110.43, 125,790.93 and 57,165.49

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Solution

The fourth proportional to 91,110.43, 125,790.93 and 57,165.49 is: 78,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,110.43 : 125,790.93 = 57,165.49 : x
  2. Step 2: Convert to fraction form
    91,110.43/125,790.93 = 57,165.49/x
  3. Step 3: Cross multiply
    91,110.43x = 125,790.93 × 57,165.49
  4. Step 4: Simplify right side
    91,110.43x = 7,190,900,151.01
  5. Step 5: Solve for x
    x = 7,190,900,151.01/91,110.43
  6. Step 6: Final answer
    x = 78,925.10

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1.5x scale

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.