Home / 87,910.90-121,319.30-52,095.12

Finding the Fourth Proportional to 87,910.90, 121,319.30 and 52,095.12

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Solution

The fourth proportional to 87,910.90, 121,319.30 and 52,095.12 is: 71,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.90 : 121,319.30 = 52,095.12 : x
  2. Step 2: Convert to fraction form
    87,910.90/121,319.30 = 52,095.12/x
  3. Step 3: Cross multiply
    87,910.90x = 121,319.30 × 52,095.12
  4. Step 4: Simplify right side
    87,910.90x = 6,320,143,491.82
  5. Step 5: Solve for x
    x = 6,320,143,491.82/87,910.90
  6. Step 6: Final answer
    x = 71,892.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.