Home / 83,021.60-124,532.40-57,652.40

Finding the Fourth Proportional to 83,021.60, 124,532.40 and 57,652.40

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Solution

The fourth proportional to 83,021.60, 124,532.40 and 57,652.40 is: 86,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,021.60 : 124,532.40 = 57,652.40 : x
  2. Step 2: Convert to fraction form
    83,021.60/124,532.40 = 57,652.40/x
  3. Step 3: Cross multiply
    83,021.60x = 124,532.40 × 57,652.40
  4. Step 4: Simplify right side
    83,021.60x = 7,179,591,737.76
  5. Step 5: Solve for x
    x = 7,179,591,737.76/83,021.60
  6. Step 6: Final answer
    x = 86,478.60

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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.