Home / 87,312.20-130,969.10-34,735.10

Finding the Fourth Proportional to 87,312.20, 130,969.10 and 34,735.10

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Solution

The fourth proportional to 87,312.20, 130,969.10 and 34,735.10 is: 52,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,312.20 : 130,969.10 = 34,735.10 : x
  2. Step 2: Convert to fraction form
    87,312.20/130,969.10 = 34,735.10/x
  3. Step 3: Cross multiply
    87,312.20x = 130,969.10 × 34,735.10
  4. Step 4: Simplify right side
    87,312.20x = 4,549,224,217.40
  5. Step 5: Solve for x
    x = 4,549,224,217.40/87,312.20
  6. Step 6: Final answer
    x = 52,102.96

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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.