Home / 87,256.13-120,400.34-49,008.35

Finding the Fourth Proportional to 87,256.13, 120,400.34 and 49,008.35

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Solution

The fourth proportional to 87,256.13, 120,400.34 and 49,008.35 is: 67,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,256.13 : 120,400.34 = 49,008.35 : x
  2. Step 2: Convert to fraction form
    87,256.13/120,400.34 = 49,008.35/x
  3. Step 3: Cross multiply
    87,256.13x = 120,400.34 × 49,008.35
  4. Step 4: Simplify right side
    87,256.13x = 5,900,621,281.15
  5. Step 5: Solve for x
    x = 5,900,621,281.15/87,256.13
  6. Step 6: Final answer
    x = 67,624.15

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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.