Home / 87,156.70-130,778.26-34,565.02

Finding the Fourth Proportional to 87,156.70, 130,778.26 and 34,565.02

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Solution

The fourth proportional to 87,156.70, 130,778.26 and 34,565.02 is: 51,864.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156.70 : 130,778.26 = 34,565.02 : x
  2. Step 2: Convert to fraction form
    87,156.70/130,778.26 = 34,565.02/x
  3. Step 3: Cross multiply
    87,156.70x = 130,778.26 × 34,565.02
  4. Step 4: Simplify right side
    87,156.70x = 4,520,353,172.47
  5. Step 5: Solve for x
    x = 4,520,353,172.47/87,156.70
  6. Step 6: Final answer
    x = 51,864.67

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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.