Home / 60,519.40-90,779.10-57,140.20

Finding the Fourth Proportional to 60,519.40, 90,779.10 and 57,140.20

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Solution

The fourth proportional to 60,519.40, 90,779.10 and 57,140.20 is: 85,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,519.40 : 90,779.10 = 57,140.20 : x
  2. Step 2: Convert to fraction form
    60,519.40/90,779.10 = 57,140.20/x
  3. Step 3: Cross multiply
    60,519.40x = 90,779.10 × 57,140.20
  4. Step 4: Simplify right side
    60,519.40x = 5,187,135,929.82
  5. Step 5: Solve for x
    x = 5,187,135,929.82/60,519.40
  6. Step 6: Final answer
    x = 85,710.30

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Similar ratio
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1.5x scale

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.