Home / 87,897.13-121,298.08-47,610.77

Finding the Fourth Proportional to 87,897.13, 121,298.08 and 47,610.77

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Solution

The fourth proportional to 87,897.13, 121,298.08 and 47,610.77 is: 65,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.13 : 121,298.08 = 47,610.77 : x
  2. Step 2: Convert to fraction form
    87,897.13/121,298.08 = 47,610.77/x
  3. Step 3: Cross multiply
    87,897.13x = 121,298.08 × 47,610.77
  4. Step 4: Simplify right side
    87,897.13x = 5,775,094,988.32
  5. Step 5: Solve for x
    x = 5,775,094,988.32/87,897.13
  6. Step 6: Final answer
    x = 65,702.88

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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.