Home / 83,125.60-124,688.40-48,047.20

Finding the Fourth Proportional to 83,125.60, 124,688.40 and 48,047.20

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Solution

The fourth proportional to 83,125.60, 124,688.40 and 48,047.20 is: 72,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,125.60 : 124,688.40 = 48,047.20 : x
  2. Step 2: Convert to fraction form
    83,125.60/124,688.40 = 48,047.20/x
  3. Step 3: Cross multiply
    83,125.60x = 124,688.40 × 48,047.20
  4. Step 4: Simplify right side
    83,125.60x = 5,990,928,492.48
  5. Step 5: Solve for x
    x = 5,990,928,492.48/83,125.60
  6. Step 6: Final answer
    x = 72,070.80

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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.