Home / 87,254.60-130,902.40-28,088.05

Finding the Fourth Proportional to 87,254.60, 130,902.40 and 28,088.05

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Solution

The fourth proportional to 87,254.60, 130,902.40 and 28,088.05 is: 42,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,254.60 : 130,902.40 = 28,088.05 : x
  2. Step 2: Convert to fraction form
    87,254.60/130,902.40 = 28,088.05/x
  3. Step 3: Cross multiply
    87,254.60x = 130,902.40 × 28,088.05
  4. Step 4: Simplify right side
    87,254.60x = 3,676,793,156.32
  5. Step 5: Solve for x
    x = 3,676,793,156.32/87,254.60
  6. Step 6: Final answer
    x = 42,138.67

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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.