Home / 87,478.48-120,777.30-67,298.14

Finding the Fourth Proportional to 87,478.48, 120,777.30 and 67,298.14

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Solution

The fourth proportional to 87,478.48, 120,777.30 and 67,298.14 is: 92,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,478.48 : 120,777.30 = 67,298.14 : x
  2. Step 2: Convert to fraction form
    87,478.48/120,777.30 = 67,298.14/x
  3. Step 3: Cross multiply
    87,478.48x = 120,777.30 × 67,298.14
  4. Step 4: Simplify right side
    87,478.48x = 8,128,087,644.22
  5. Step 5: Solve for x
    x = 8,128,087,644.22/87,478.48
  6. Step 6: Final answer
    x = 92,915.28

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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.