Home / 87,729.48-120,924.50-68,575.41

Finding the Fourth Proportional to 87,729.48, 120,924.50 and 68,575.41

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Solution

The fourth proportional to 87,729.48, 120,924.50 and 68,575.41 is: 94,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.48 : 120,924.50 = 68,575.41 : x
  2. Step 2: Convert to fraction form
    87,729.48/120,924.50 = 68,575.41/x
  3. Step 3: Cross multiply
    87,729.48x = 120,924.50 × 68,575.41
  4. Step 4: Simplify right side
    87,729.48x = 8,292,446,823.67
  5. Step 5: Solve for x
    x = 8,292,446,823.67/87,729.48
  6. Step 6: Final answer
    x = 94,522.92

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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.