Home / 81,282.92-121,885.50-34,510.28

Finding the Fourth Proportional to 81,282.92, 121,885.50 and 34,510.28

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Solution

The fourth proportional to 81,282.92, 121,885.50 and 34,510.28 is: 51,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.92 : 121,885.50 = 34,510.28 : x
  2. Step 2: Convert to fraction form
    81,282.92/121,885.50 = 34,510.28/x
  3. Step 3: Cross multiply
    81,282.92x = 121,885.50 × 34,510.28
  4. Step 4: Simplify right side
    81,282.92x = 4,206,302,732.94
  5. Step 5: Solve for x
    x = 4,206,302,732.94/81,282.92
  6. Step 6: Final answer
    x = 51,748.91

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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.