Home / 66,557.69-99,677.30-38,419.20

Finding the Fourth Proportional to 66,557.69, 99,677.30 and 38,419.20

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Solution

The fourth proportional to 66,557.69, 99,677.30 and 38,419.20 is: 57,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.69 : 99,677.30 = 38,419.20 : x
  2. Step 2: Convert to fraction form
    66,557.69/99,677.30 = 38,419.20/x
  3. Step 3: Cross multiply
    66,557.69x = 99,677.30 × 38,419.20
  4. Step 4: Simplify right side
    66,557.69x = 3,829,521,932.06
  5. Step 5: Solve for x
    x = 3,829,521,932.06/66,557.69
  6. Step 6: Final answer
    x = 57,536.88

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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.