Home / 87,593.34-120,878.80-47,307.11

Finding the Fourth Proportional to 87,593.34, 120,878.80 and 47,307.11

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Solution

The fourth proportional to 87,593.34, 120,878.80 and 47,307.11 is: 65,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,593.34 : 120,878.80 = 47,307.11 : x
  2. Step 2: Convert to fraction form
    87,593.34/120,878.80 = 47,307.11/x
  3. Step 3: Cross multiply
    87,593.34x = 120,878.80 × 47,307.11
  4. Step 4: Simplify right side
    87,593.34x = 5,718,425,965.61
  5. Step 5: Solve for x
    x = 5,718,425,965.61/87,593.34
  6. Step 6: Final answer
    x = 65,283.80

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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.