Home / 56,798.28-78,385.05-31,304.61

Finding the Fourth Proportional to 56,798.28, 78,385.05 and 31,304.61

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Solution

The fourth proportional to 56,798.28, 78,385.05 and 31,304.61 is: 43,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,798.28 : 78,385.05 = 31,304.61 : x
  2. Step 2: Convert to fraction form
    56,798.28/78,385.05 = 31,304.61/x
  3. Step 3: Cross multiply
    56,798.28x = 78,385.05 × 31,304.61
  4. Step 4: Simplify right side
    56,798.28x = 2,453,813,420.08
  5. Step 5: Solve for x
    x = 2,453,813,420.08/56,798.28
  6. Step 6: Final answer
    x = 43,202.25

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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.