Home / 42,079.80-63,122.94-12,497.16

Finding the Fourth Proportional to 42,079.80, 63,122.94 and 12,497.16

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Solution

The fourth proportional to 42,079.80, 63,122.94 and 12,497.16 is: 18,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,079.80 : 63,122.94 = 12,497.16 : x
  2. Step 2: Convert to fraction form
    42,079.80/63,122.94 = 12,497.16/x
  3. Step 3: Cross multiply
    42,079.80x = 63,122.94 × 12,497.16
  4. Step 4: Simplify right side
    42,079.80x = 788,857,480.85
  5. Step 5: Solve for x
    x = 788,857,480.85/42,079.80
  6. Step 6: Final answer
    x = 18,746.70

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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.