Home / 56,821.10-78,414.48-31,329.18

Finding the Fourth Proportional to 56,821.10, 78,414.48 and 31,329.18

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Solution

The fourth proportional to 56,821.10, 78,414.48 and 31,329.18 is: 43,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.10 : 78,414.48 = 31,329.18 : x
  2. Step 2: Convert to fraction form
    56,821.10/78,414.48 = 31,329.18/x
  3. Step 3: Cross multiply
    56,821.10x = 78,414.48 × 31,329.18
  4. Step 4: Simplify right side
    56,821.10x = 2,456,661,358.53
  5. Step 5: Solve for x
    x = 2,456,661,358.53/56,821.10
  6. Step 6: Final answer
    x = 43,235.02

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1.5x scale

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.