Home / 79,285.29-109,471.10-51,040.18

Finding the Fourth Proportional to 79,285.29, 109,471.10 and 51,040.18

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Solution

The fourth proportional to 79,285.29, 109,471.10 and 51,040.18 is: 70,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285.29 : 109,471.10 = 51,040.18 : x
  2. Step 2: Convert to fraction form
    79,285.29/109,471.10 = 51,040.18/x
  3. Step 3: Cross multiply
    79,285.29x = 109,471.10 × 51,040.18
  4. Step 4: Simplify right side
    79,285.29x = 5,587,424,648.80
  5. Step 5: Solve for x
    x = 5,587,424,648.80/79,285.29
  6. Step 6: Final answer
    x = 70,472.40

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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.