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Finding the Fourth Proportional to 83,217.60, 124,826.40 and 48,139.20

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Solution

The fourth proportional to 83,217.60, 124,826.40 and 48,139.20 is: 72,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,217.60 : 124,826.40 = 48,139.20 : x
  2. Step 2: Convert to fraction form
    83,217.60/124,826.40 = 48,139.20/x
  3. Step 3: Cross multiply
    83,217.60x = 124,826.40 × 48,139.20
  4. Step 4: Simplify right side
    83,217.60x = 6,009,043,034.88
  5. Step 5: Solve for x
    x = 6,009,043,034.88/83,217.60
  6. Step 6: Final answer
    x = 72,208.80

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1.5x scale

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.