Home / 87,897.52-121,298.70-47,611.72

Finding the Fourth Proportional to 87,897.52, 121,298.70 and 47,611.72

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Solution

The fourth proportional to 87,897.52, 121,298.70 and 47,611.72 is: 65,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.52 : 121,298.70 = 47,611.72 : x
  2. Step 2: Convert to fraction form
    87,897.52/121,298.70 = 47,611.72/x
  3. Step 3: Cross multiply
    87,897.52x = 121,298.70 × 47,611.72
  4. Step 4: Simplify right side
    87,897.52x = 5,775,239,740.76
  5. Step 5: Solve for x
    x = 5,775,239,740.76/87,897.52
  6. Step 6: Final answer
    x = 65,704.24

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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.