Home / 52,098.60-78,146.84-12,655.92

Finding the Fourth Proportional to 52,098.60, 78,146.84 and 12,655.92

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Solution

The fourth proportional to 52,098.60, 78,146.84 and 12,655.92 is: 18,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,098.60 : 78,146.84 = 12,655.92 : x
  2. Step 2: Convert to fraction form
    52,098.60/78,146.84 = 12,655.92/x
  3. Step 3: Cross multiply
    52,098.60x = 78,146.84 × 12,655.92
  4. Step 4: Simplify right side
    52,098.60x = 989,020,155.29
  5. Step 5: Solve for x
    x = 989,020,155.29/52,098.60
  6. Step 6: Final answer
    x = 18,983.62

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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.