Home / 87,964.48-121,390.29-47,677.20

Finding the Fourth Proportional to 87,964.48, 121,390.29 and 47,677.20

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Solution

The fourth proportional to 87,964.48, 121,390.29 and 47,677.20 is: 65,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,964.48 : 121,390.29 = 47,677.20 : x
  2. Step 2: Convert to fraction form
    87,964.48/121,390.29 = 47,677.20/x
  3. Step 3: Cross multiply
    87,964.48x = 121,390.29 × 47,677.20
  4. Step 4: Simplify right side
    87,964.48x = 5,787,549,768.39
  5. Step 5: Solve for x
    x = 5,787,549,768.39/87,964.48
  6. Step 6: Final answer
    x = 65,794.17

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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.