Home / 66,531.38-91,804.59-39,677.04

Finding the Fourth Proportional to 66,531.38, 91,804.59 and 39,677.04

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Solution

The fourth proportional to 66,531.38, 91,804.59 and 39,677.04 is: 54,749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.38 : 91,804.59 = 39,677.04 : x
  2. Step 2: Convert to fraction form
    66,531.38/91,804.59 = 39,677.04/x
  3. Step 3: Cross multiply
    66,531.38x = 91,804.59 × 39,677.04
  4. Step 4: Simplify right side
    66,531.38x = 3,642,534,389.61
  5. Step 5: Solve for x
    x = 3,642,534,389.61/66,531.38
  6. Step 6: Final answer
    x = 54,749.12

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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.