Home / 88,127.13-121,678.65-54,181.17

Finding the Fourth Proportional to 88,127.13, 121,678.65 and 54,181.17

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Solution

The fourth proportional to 88,127.13, 121,678.65 and 54,181.17 is: 74,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,127.13 : 121,678.65 = 54,181.17 : x
  2. Step 2: Convert to fraction form
    88,127.13/121,678.65 = 54,181.17/x
  3. Step 3: Cross multiply
    88,127.13x = 121,678.65 × 54,181.17
  4. Step 4: Simplify right side
    88,127.13x = 6,592,691,621.02
  5. Step 5: Solve for x
    x = 6,592,691,621.02/88,127.13
  6. Step 6: Final answer
    x = 74,808.88

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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.