Home / 66,318.40-91,528.14-38,018.62

Finding the Fourth Proportional to 66,318.40, 91,528.14 and 38,018.62

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Solution

The fourth proportional to 66,318.40, 91,528.14 and 38,018.62 is: 52,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,318.40 : 91,528.14 = 38,018.62 : x
  2. Step 2: Convert to fraction form
    66,318.40/91,528.14 = 38,018.62/x
  3. Step 3: Cross multiply
    66,318.40x = 91,528.14 × 38,018.62
  4. Step 4: Simplify right side
    66,318.40x = 3,479,773,573.97
  5. Step 5: Solve for x
    x = 3,479,773,573.97/66,318.40
  6. Step 6: Final answer
    x = 52,470.71

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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.