Home / 42,240.30-63,360.45-11,078.70

Finding the Fourth Proportional to 42,240.30, 63,360.45 and 11,078.70

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Solution

The fourth proportional to 42,240.30, 63,360.45 and 11,078.70 is: 16,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240.30 : 63,360.45 = 11,078.70 : x
  2. Step 2: Convert to fraction form
    42,240.30/63,360.45 = 11,078.70/x
  3. Step 3: Cross multiply
    42,240.30x = 63,360.45 × 11,078.70
  4. Step 4: Simplify right side
    42,240.30x = 701,951,417.42
  5. Step 5: Solve for x
    x = 701,951,417.42/42,240.30
  6. Step 6: Final answer
    x = 16,618.05

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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.