Home / 88,665.17-122,376.15-54,215.79

Finding the Fourth Proportional to 88,665.17, 122,376.15 and 54,215.79

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Solution

The fourth proportional to 88,665.17, 122,376.15 and 54,215.79 is: 74,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,665.17 : 122,376.15 = 54,215.79 : x
  2. Step 2: Convert to fraction form
    88,665.17/122,376.15 = 54,215.79/x
  3. Step 3: Cross multiply
    88,665.17x = 122,376.15 × 54,215.79
  4. Step 4: Simplify right side
    88,665.17x = 6,634,719,378.33
  5. Step 5: Solve for x
    x = 6,634,719,378.33/88,665.17
  6. Step 6: Final answer
    x = 74,828.93

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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.