Home / 42,420.30-63,630.45-40,001.10

Finding the Fourth Proportional to 42,420.30, 63,630.45 and 40,001.10

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Solution

The fourth proportional to 42,420.30, 63,630.45 and 40,001.10 is: 60,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,420.30 : 63,630.45 = 40,001.10 : x
  2. Step 2: Convert to fraction form
    42,420.30/63,630.45 = 40,001.10/x
  3. Step 3: Cross multiply
    42,420.30x = 63,630.45 × 40,001.10
  4. Step 4: Simplify right side
    42,420.30x = 2,545,287,993.50
  5. Step 5: Solve for x
    x = 2,545,287,993.50/42,420.30
  6. Step 6: Final answer
    x = 60,001.65

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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.