Home / 61,610.65-84,983.55-40,391.28

Finding the Fourth Proportional to 61,610.65, 84,983.55 and 40,391.28

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Solution

The fourth proportional to 61,610.65, 84,983.55 and 40,391.28 is: 55,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,610.65 : 84,983.55 = 40,391.28 : x
  2. Step 2: Convert to fraction form
    61,610.65/84,983.55 = 40,391.28/x
  3. Step 3: Cross multiply
    61,610.65x = 84,983.55 × 40,391.28
  4. Step 4: Simplify right side
    61,610.65x = 3,432,594,211.98
  5. Step 5: Solve for x
    x = 3,432,594,211.98/61,610.65
  6. Step 6: Final answer
    x = 55,714.30

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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.