Home / 42,165.10-63,247.65-40,221.10

Finding the Fourth Proportional to 42,165.10, 63,247.65 and 40,221.10

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Solution

The fourth proportional to 42,165.10, 63,247.65 and 40,221.10 is: 60,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,165.10 : 63,247.65 = 40,221.10 : x
  2. Step 2: Convert to fraction form
    42,165.10/63,247.65 = 40,221.10/x
  3. Step 3: Cross multiply
    42,165.10x = 63,247.65 × 40,221.10
  4. Step 4: Simplify right side
    42,165.10x = 2,543,890,055.42
  5. Step 5: Solve for x
    x = 2,543,890,055.42/42,165.10
  6. Step 6: Final answer
    x = 60,331.65

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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.