Home / 78,851.28-108,816.84-48,228.96

Finding the Fourth Proportional to 78,851.28, 108,816.84 and 48,228.96

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Solution

The fourth proportional to 78,851.28, 108,816.84 and 48,228.96 is: 66,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.28 : 108,816.84 = 48,228.96 : x
  2. Step 2: Convert to fraction form
    78,851.28/108,816.84 = 48,228.96/x
  3. Step 3: Cross multiply
    78,851.28x = 108,816.84 × 48,228.96
  4. Step 4: Simplify right side
    78,851.28x = 5,248,123,023.69
  5. Step 5: Solve for x
    x = 5,248,123,023.69/78,851.28
  6. Step 6: Final answer
    x = 66,557.23

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1.5x scale

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.