Home / 87,857.88-121,244.10-47,572.14

Finding the Fourth Proportional to 87,857.88, 121,244.10 and 47,572.14

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Solution

The fourth proportional to 87,857.88, 121,244.10 and 47,572.14 is: 65,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,857.88 : 121,244.10 = 47,572.14 : x
  2. Step 2: Convert to fraction form
    87,857.88/121,244.10 = 47,572.14/x
  3. Step 3: Cross multiply
    87,857.88x = 121,244.10 × 47,572.14
  4. Step 4: Simplify right side
    87,857.88x = 5,767,841,299.37
  5. Step 5: Solve for x
    x = 5,767,841,299.37/87,857.88
  6. Step 6: Final answer
    x = 65,649.68

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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.