Home / 42,342.06-63,508.20-11,179.74

Finding the Fourth Proportional to 42,342.06, 63,508.20 and 11,179.74

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Solution

The fourth proportional to 42,342.06, 63,508.20 and 11,179.74 is: 16,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,342.06 : 63,508.20 = 11,179.74 : x
  2. Step 2: Convert to fraction form
    42,342.06/63,508.20 = 11,179.74/x
  3. Step 3: Cross multiply
    42,342.06x = 63,508.20 × 11,179.74
  4. Step 4: Simplify right side
    42,342.06x = 710,005,163.87
  5. Step 5: Solve for x
    x = 710,005,163.87/42,342.06
  6. Step 6: Final answer
    x = 16,768.32

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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.