Home / 51,958.80-71,703.18-28,085.40

Finding the Fourth Proportional to 51,958.80, 71,703.18 and 28,085.40

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Solution

The fourth proportional to 51,958.80, 71,703.18 and 28,085.40 is: 38,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,958.80 : 71,703.18 = 28,085.40 : x
  2. Step 2: Convert to fraction form
    51,958.80/71,703.18 = 28,085.40/x
  3. Step 3: Cross multiply
    51,958.80x = 71,703.18 × 28,085.40
  4. Step 4: Simplify right side
    51,958.80x = 2,013,812,491.57
  5. Step 5: Solve for x
    x = 2,013,812,491.57/51,958.80
  6. Step 6: Final answer
    x = 38,757.87

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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.