Home / 66,590.49-91,897.61-38,296.20

Finding the Fourth Proportional to 66,590.49, 91,897.61 and 38,296.20

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Solution

The fourth proportional to 66,590.49, 91,897.61 and 38,296.20 is: 52,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,590.49 : 91,897.61 = 38,296.20 : x
  2. Step 2: Convert to fraction form
    66,590.49/91,897.61 = 38,296.20/x
  3. Step 3: Cross multiply
    66,590.49x = 91,897.61 × 38,296.20
  4. Step 4: Simplify right side
    66,590.49x = 3,519,329,060.60
  5. Step 5: Solve for x
    x = 3,519,329,060.60/66,590.49
  6. Step 6: Final answer
    x = 52,850.33

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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.