Home / 87,505.60-131,258.40-57,438.40

Finding the Fourth Proportional to 87,505.60, 131,258.40 and 57,438.40

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Solution

The fourth proportional to 87,505.60, 131,258.40 and 57,438.40 is: 86,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.60 : 131,258.40 = 57,438.40 : x
  2. Step 2: Convert to fraction form
    87,505.60/131,258.40 = 57,438.40/x
  3. Step 3: Cross multiply
    87,505.60x = 131,258.40 × 57,438.40
  4. Step 4: Simplify right side
    87,505.60x = 7,539,272,482.56
  5. Step 5: Solve for x
    x = 7,539,272,482.56/87,505.60
  6. Step 6: Final answer
    x = 86,157.60

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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.