Home / 56,535.20-78,012.96-31,382

Finding the Fourth Proportional to 56,535.20, 78,012.96 and 31,382

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Solution

The fourth proportional to 56,535.20, 78,012.96 and 31,382 is: 43,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,535.20 : 78,012.96 = 31,382 : x
  2. Step 2: Convert to fraction form
    56,535.20/78,012.96 = 31,382/x
  3. Step 3: Cross multiply
    56,535.20x = 78,012.96 × 31,382
  4. Step 4: Simplify right side
    56,535.20x = 2,448,202,710.72
  5. Step 5: Solve for x
    x = 2,448,202,710.72/56,535.20
  6. Step 6: Final answer
    x = 43,304.04

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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.