Home / 61,134.28-84,362.34-34,279.72

Finding the Fourth Proportional to 61,134.28, 84,362.34 and 34,279.72

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Solution

The fourth proportional to 61,134.28, 84,362.34 and 34,279.72 is: 47,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,134.28 : 84,362.34 = 34,279.72 : x
  2. Step 2: Convert to fraction form
    61,134.28/84,362.34 = 34,279.72/x
  3. Step 3: Cross multiply
    61,134.28x = 84,362.34 × 34,279.72
  4. Step 4: Simplify right side
    61,134.28x = 2,891,917,393.74
  5. Step 5: Solve for x
    x = 2,891,917,393.74/61,134.28
  6. Step 6: Final answer
    x = 47,304.35

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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.