Home / 66,330.71-91,538.12-36,117.30

Finding the Fourth Proportional to 66,330.71, 91,538.12 and 36,117.30

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Solution

The fourth proportional to 66,330.71, 91,538.12 and 36,117.30 is: 49,842.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.71 : 91,538.12 = 36,117.30 : x
  2. Step 2: Convert to fraction form
    66,330.71/91,538.12 = 36,117.30/x
  3. Step 3: Cross multiply
    66,330.71x = 91,538.12 × 36,117.30
  4. Step 4: Simplify right side
    66,330.71x = 3,306,109,560.89
  5. Step 5: Solve for x
    x = 3,306,109,560.89/66,330.71
  6. Step 6: Final answer
    x = 49,842.82

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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.