Home / 66,131.08-91,275.43-43,472.17

Finding the Fourth Proportional to 66,131.08, 91,275.43 and 43,472.17

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Solution

The fourth proportional to 66,131.08, 91,275.43 and 43,472.17 is: 60,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.08 : 91,275.43 = 43,472.17 : x
  2. Step 2: Convert to fraction form
    66,131.08/91,275.43 = 43,472.17/x
  3. Step 3: Cross multiply
    66,131.08x = 91,275.43 × 43,472.17
  4. Step 4: Simplify right side
    66,131.08x = 3,967,941,009.78
  5. Step 5: Solve for x
    x = 3,967,941,009.78/66,131.08
  6. Step 6: Final answer
    x = 60,001.15

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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.