Home / 60,780.08-83,776.11-40,629.61

Finding the Fourth Proportional to 60,780.08, 83,776.11 and 40,629.61

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Solution

The fourth proportional to 60,780.08, 83,776.11 and 40,629.61 is: 56,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,780.08 : 83,776.11 = 40,629.61 : x
  2. Step 2: Convert to fraction form
    60,780.08/83,776.11 = 40,629.61/x
  3. Step 3: Cross multiply
    60,780.08x = 83,776.11 × 40,629.61
  4. Step 4: Simplify right side
    60,780.08x = 3,403,790,386.28
  5. Step 5: Solve for x
    x = 3,403,790,386.28/60,780.08
  6. Step 6: Final answer
    x = 56,001.75

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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.