Home / 66,519.53-99,726.32-38,407.70

Finding the Fourth Proportional to 66,519.53, 99,726.32 and 38,407.70

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Solution

The fourth proportional to 66,519.53, 99,726.32 and 38,407.70 is: 57,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,519.53 : 99,726.32 = 38,407.70 : x
  2. Step 2: Convert to fraction form
    66,519.53/99,726.32 = 38,407.70/x
  3. Step 3: Cross multiply
    66,519.53x = 99,726.32 × 38,407.70
  4. Step 4: Simplify right side
    66,519.53x = 3,830,258,637.94
  5. Step 5: Solve for x
    x = 3,830,258,637.94/66,519.53
  6. Step 6: Final answer
    x = 57,580.96

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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.