Home / 52,197.68-78,280.04-17,129.20

Finding the Fourth Proportional to 52,197.68, 78,280.04 and 17,129.20

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Solution

The fourth proportional to 52,197.68, 78,280.04 and 17,129.20 is: 25,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,197.68 : 78,280.04 = 17,129.20 : x
  2. Step 2: Convert to fraction form
    52,197.68/78,280.04 = 17,129.20/x
  3. Step 3: Cross multiply
    52,197.68x = 78,280.04 × 17,129.20
  4. Step 4: Simplify right side
    52,197.68x = 1,340,874,461.17
  5. Step 5: Solve for x
    x = 1,340,874,461.17/52,197.68
  6. Step 6: Final answer
    x = 25,688.39

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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.