Home / 56,921.40-85,382.10-56,046.60

Finding the Fourth Proportional to 56,921.40, 85,382.10 and 56,046.60

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Solution

The fourth proportional to 56,921.40, 85,382.10 and 56,046.60 is: 84,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,921.40 : 85,382.10 = 56,046.60 : x
  2. Step 2: Convert to fraction form
    56,921.40/85,382.10 = 56,046.60/x
  3. Step 3: Cross multiply
    56,921.40x = 85,382.10 × 56,046.60
  4. Step 4: Simplify right side
    56,921.40x = 4,785,376,405.86
  5. Step 5: Solve for x
    x = 4,785,376,405.86/56,921.40
  6. Step 6: Final answer
    x = 84,069.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.