Home / 72,769.58-109,154-62,878.76

Finding the Fourth Proportional to 72,769.58, 109,154 and 62,878.76

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Solution

The fourth proportional to 72,769.58, 109,154 and 62,878.76 is: 94,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769.58 : 109,154 = 62,878.76 : x
  2. Step 2: Convert to fraction form
    72,769.58/109,154 = 62,878.76/x
  3. Step 3: Cross multiply
    72,769.58x = 109,154 × 62,878.76
  4. Step 4: Simplify right side
    72,769.58x = 6,863,468,169.04
  5. Step 5: Solve for x
    x = 6,863,468,169.04/72,769.58
  6. Step 6: Final answer
    x = 94,317.82

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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.