Home / 63,124.32-87,105.84-40,423.20

Finding the Fourth Proportional to 63,124.32, 87,105.84 and 40,423.20

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Solution

The fourth proportional to 63,124.32, 87,105.84 and 40,423.20 is: 55,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.32 : 87,105.84 = 40,423.20 : x
  2. Step 2: Convert to fraction form
    63,124.32/87,105.84 = 40,423.20/x
  3. Step 3: Cross multiply
    63,124.32x = 87,105.84 × 40,423.20
  4. Step 4: Simplify right side
    63,124.32x = 3,521,096,791.49
  5. Step 5: Solve for x
    x = 3,521,096,791.49/63,124.32
  6. Step 6: Final answer
    x = 55,780.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.