Home / 87,008.85-120,100.73-51,197.13

Finding the Fourth Proportional to 87,008.85, 120,100.73 and 51,197.13

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Solution

The fourth proportional to 87,008.85, 120,100.73 and 51,197.13 is: 70,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,008.85 : 120,100.73 = 51,197.13 : x
  2. Step 2: Convert to fraction form
    87,008.85/120,100.73 = 51,197.13/x
  3. Step 3: Cross multiply
    87,008.85x = 120,100.73 × 51,197.13
  4. Step 4: Simplify right side
    87,008.85x = 6,148,812,430.92
  5. Step 5: Solve for x
    x = 6,148,812,430.92/87,008.85
  6. Step 6: Final answer
    x = 70,668.82

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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.