Home / 83,130.08-124,734-48,099.20

Finding the Fourth Proportional to 83,130.08, 124,734 and 48,099.20

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Solution

The fourth proportional to 83,130.08, 124,734 and 48,099.20 is: 72,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,130.08 : 124,734 = 48,099.20 : x
  2. Step 2: Convert to fraction form
    83,130.08/124,734 = 48,099.20/x
  3. Step 3: Cross multiply
    83,130.08x = 124,734 × 48,099.20
  4. Step 4: Simplify right side
    83,130.08x = 5,999,605,612.80
  5. Step 5: Solve for x
    x = 5,999,605,612.80/83,130.08
  6. Step 6: Final answer
    x = 72,171.30

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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.