Home / 57,740.20-86,610.30-42,188.20

Finding the Fourth Proportional to 57,740.20, 86,610.30 and 42,188.20

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Solution

The fourth proportional to 57,740.20, 86,610.30 and 42,188.20 is: 63,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,740.20 : 86,610.30 = 42,188.20 : x
  2. Step 2: Convert to fraction form
    57,740.20/86,610.30 = 42,188.20/x
  3. Step 3: Cross multiply
    57,740.20x = 86,610.30 × 42,188.20
  4. Step 4: Simplify right side
    57,740.20x = 3,653,932,658.46
  5. Step 5: Solve for x
    x = 3,653,932,658.46/57,740.20
  6. Step 6: Final answer
    x = 63,282.30

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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.