Home / 87,628.28-120,926.87-47,341.92

Finding the Fourth Proportional to 87,628.28, 120,926.87 and 47,341.92

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Solution

The fourth proportional to 87,628.28, 120,926.87 and 47,341.92 is: 65,331.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.28 : 120,926.87 = 47,341.92 : x
  2. Step 2: Convert to fraction form
    87,628.28/120,926.87 = 47,341.92/x
  3. Step 3: Cross multiply
    87,628.28x = 120,926.87 × 47,341.92
  4. Step 4: Simplify right side
    87,628.28x = 5,724,909,719.11
  5. Step 5: Solve for x
    x = 5,724,909,719.11/87,628.28
  6. Step 6: Final answer
    x = 65,331.76

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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.