Home / 78,814.60-108,667.38-48,954.76

Finding the Fourth Proportional to 78,814.60, 108,667.38 and 48,954.76

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Solution

The fourth proportional to 78,814.60, 108,667.38 and 48,954.76 is: 67,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.60 : 108,667.38 = 48,954.76 : x
  2. Step 2: Convert to fraction form
    78,814.60/108,667.38 = 48,954.76/x
  3. Step 3: Cross multiply
    78,814.60x = 108,667.38 × 48,954.76
  4. Step 4: Simplify right side
    78,814.60x = 5,319,785,507.73
  5. Step 5: Solve for x
    x = 5,319,785,507.73/78,814.60
  6. Step 6: Final answer
    x = 67,497.46

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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.