Home / 87,883.47-121,279.08-47,597.21

Finding the Fourth Proportional to 87,883.47, 121,279.08 and 47,597.21

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Solution

The fourth proportional to 87,883.47, 121,279.08 and 47,597.21 is: 65,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.47 : 121,279.08 = 47,597.21 : x
  2. Step 2: Convert to fraction form
    87,883.47/121,279.08 = 47,597.21/x
  3. Step 3: Cross multiply
    87,883.47x = 121,279.08 × 47,597.21
  4. Step 4: Simplify right side
    87,883.47x = 5,772,545,839.37
  5. Step 5: Solve for x
    x = 5,772,545,839.37/87,883.47
  6. Step 6: Final answer
    x = 65,684.09

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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.