Home / 91,778.64-126,639.18-54,060.36

Finding the Fourth Proportional to 91,778.64, 126,639.18 and 54,060.36

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Solution

The fourth proportional to 91,778.64, 126,639.18 and 54,060.36 is: 74,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.64 : 126,639.18 = 54,060.36 : x
  2. Step 2: Convert to fraction form
    91,778.64/126,639.18 = 54,060.36/x
  3. Step 3: Cross multiply
    91,778.64x = 126,639.18 × 54,060.36
  4. Step 4: Simplify right side
    91,778.64x = 6,846,159,660.90
  5. Step 5: Solve for x
    x = 6,846,159,660.90/91,778.64
  6. Step 6: Final answer
    x = 74,594.26

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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.