Home / 66,387.03-91,603.82-38,087.25

Finding the Fourth Proportional to 66,387.03, 91,603.82 and 38,087.25

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Solution

The fourth proportional to 66,387.03, 91,603.82 and 38,087.25 is: 52,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,387.03 : 91,603.82 = 38,087.25 : x
  2. Step 2: Convert to fraction form
    66,387.03/91,603.82 = 38,087.25/x
  3. Step 3: Cross multiply
    66,387.03x = 91,603.82 × 38,087.25
  4. Step 4: Simplify right side
    66,387.03x = 3,488,937,402.86
  5. Step 5: Solve for x
    x = 3,488,937,402.86/66,387.03
  6. Step 6: Final answer
    x = 52,554.50

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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.