Home / 81,029.64-121,557.42-34,282.92

Finding the Fourth Proportional to 81,029.64, 121,557.42 and 34,282.92

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Solution

The fourth proportional to 81,029.64, 121,557.42 and 34,282.92 is: 51,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.64 : 121,557.42 = 34,282.92 : x
  2. Step 2: Convert to fraction form
    81,029.64/121,557.42 = 34,282.92/x
  3. Step 3: Cross multiply
    81,029.64x = 121,557.42 × 34,282.92
  4. Step 4: Simplify right side
    81,029.64x = 4,167,343,305.27
  5. Step 5: Solve for x
    x = 4,167,343,305.27/81,029.64
  6. Step 6: Final answer
    x = 51,429.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.