Home / 81,306.65-112,207.88-45,496.35

Finding the Fourth Proportional to 81,306.65, 112,207.88 and 45,496.35

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Solution

The fourth proportional to 81,306.65, 112,207.88 and 45,496.35 is: 62,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,306.65 : 112,207.88 = 45,496.35 : x
  2. Step 2: Convert to fraction form
    81,306.65/112,207.88 = 45,496.35/x
  3. Step 3: Cross multiply
    81,306.65x = 112,207.88 × 45,496.35
  4. Step 4: Simplify right side
    81,306.65x = 5,105,049,094.98
  5. Step 5: Solve for x
    x = 5,105,049,094.98/81,306.65
  6. Step 6: Final answer
    x = 62,787.59

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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.