Home / 90,843.20-136,248.60-57,503.60

Finding the Fourth Proportional to 90,843.20, 136,248.60 and 57,503.60

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Solution

The fourth proportional to 90,843.20, 136,248.60 and 57,503.60 is: 86,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.20 : 136,248.60 = 57,503.60 : x
  2. Step 2: Convert to fraction form
    90,843.20/136,248.60 = 57,503.60/x
  3. Step 3: Cross multiply
    90,843.20x = 136,248.60 × 57,503.60
  4. Step 4: Simplify right side
    90,843.20x = 7,834,784,994.96
  5. Step 5: Solve for x
    x = 7,834,784,994.96/90,843.20
  6. Step 6: Final answer
    x = 86,245.15

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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.