Home / 61,979.40-92,969.10-38,359.80

Finding the Fourth Proportional to 61,979.40, 92,969.10 and 38,359.80

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Solution

The fourth proportional to 61,979.40, 92,969.10 and 38,359.80 is: 57,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,979.40 : 92,969.10 = 38,359.80 : x
  2. Step 2: Convert to fraction form
    61,979.40/92,969.10 = 38,359.80/x
  3. Step 3: Cross multiply
    61,979.40x = 92,969.10 × 38,359.80
  4. Step 4: Simplify right side
    61,979.40x = 3,566,276,082.18
  5. Step 5: Solve for x
    x = 3,566,276,082.18/61,979.40
  6. Step 6: Final answer
    x = 57,539.70

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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.