Home / 78,562.95-108,416.67-42,752.79

Finding the Fourth Proportional to 78,562.95, 108,416.67 and 42,752.79

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Solution

The fourth proportional to 78,562.95, 108,416.67 and 42,752.79 is: 58,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,562.95 : 108,416.67 = 42,752.79 : x
  2. Step 2: Convert to fraction form
    78,562.95/108,416.67 = 42,752.79/x
  3. Step 3: Cross multiply
    78,562.95x = 108,416.67 × 42,752.79
  4. Step 4: Simplify right side
    78,562.95x = 4,635,115,125.01
  5. Step 5: Solve for x
    x = 4,635,115,125.01/78,562.95
  6. Step 6: Final answer
    x = 58,998.74

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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.