Home / 78,439.26-108,262.89-48,250.02

Finding the Fourth Proportional to 78,439.26, 108,262.89 and 48,250.02

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Solution

The fourth proportional to 78,439.26, 108,262.89 and 48,250.02 is: 66,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,439.26 : 108,262.89 = 48,250.02 : x
  2. Step 2: Convert to fraction form
    78,439.26/108,262.89 = 48,250.02/x
  3. Step 3: Cross multiply
    78,439.26x = 108,262.89 × 48,250.02
  4. Step 4: Simplify right side
    78,439.26x = 5,223,686,607.76
  5. Step 5: Solve for x
    x = 5,223,686,607.76/78,439.26
  6. Step 6: Final answer
    x = 66,595.31

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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.