Home / 42,118.92-63,178.38-12,537.18

Finding the Fourth Proportional to 42,118.92, 63,178.38 and 12,537.18

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Solution

The fourth proportional to 42,118.92, 63,178.38 and 12,537.18 is: 18,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,118.92 : 63,178.38 = 12,537.18 : x
  2. Step 2: Convert to fraction form
    42,118.92/63,178.38 = 12,537.18/x
  3. Step 3: Cross multiply
    42,118.92x = 63,178.38 × 12,537.18
  4. Step 4: Simplify right side
    42,118.92x = 792,078,722.17
  5. Step 5: Solve for x
    x = 792,078,722.17/42,118.92
  6. Step 6: Final answer
    x = 18,805.77

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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.