Home / 42,078.72-63,117.78-14,000.88

Finding the Fourth Proportional to 42,078.72, 63,117.78 and 14,000.88

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Solution

The fourth proportional to 42,078.72, 63,117.78 and 14,000.88 is: 21,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078.72 : 63,117.78 = 14,000.88 : x
  2. Step 2: Convert to fraction form
    42,078.72/63,117.78 = 14,000.88/x
  3. Step 3: Cross multiply
    42,078.72x = 63,117.78 × 14,000.88
  4. Step 4: Simplify right side
    42,078.72x = 883,704,463.65
  5. Step 5: Solve for x
    x = 883,704,463.65/42,078.72
  6. Step 6: Final answer
    x = 21,001.22

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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.