Home / 87,901.63-121,301.76-51,602.50

Finding the Fourth Proportional to 87,901.63, 121,301.76 and 51,602.50

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Solution

The fourth proportional to 87,901.63, 121,301.76 and 51,602.50 is: 71,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,901.63 : 121,301.76 = 51,602.50 : x
  2. Step 2: Convert to fraction form
    87,901.63/121,301.76 = 51,602.50/x
  3. Step 3: Cross multiply
    87,901.63x = 121,301.76 × 51,602.50
  4. Step 4: Simplify right side
    87,901.63x = 6,259,473,711.55
  5. Step 5: Solve for x
    x = 6,259,473,711.55/87,901.63
  6. Step 6: Final answer
    x = 71,209.98

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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.