Home / 87,808.48-121,095.20-58,686

Finding the Fourth Proportional to 87,808.48, 121,095.20 and 58,686

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Solution

The fourth proportional to 87,808.48, 121,095.20 and 58,686 is: 80,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808.48 : 121,095.20 = 58,686 : x
  2. Step 2: Convert to fraction form
    87,808.48/121,095.20 = 58,686/x
  3. Step 3: Cross multiply
    87,808.48x = 121,095.20 × 58,686
  4. Step 4: Simplify right side
    87,808.48x = 7,106,592,907.20
  5. Step 5: Solve for x
    x = 7,106,592,907.20/87,808.48
  6. Step 6: Final answer
    x = 80,932.88

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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.