Home / 51,478.92-71,040.33-28,817.55

Finding the Fourth Proportional to 51,478.92, 71,040.33 and 28,817.55

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Solution

The fourth proportional to 51,478.92, 71,040.33 and 28,817.55 is: 39,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.92 : 71,040.33 = 28,817.55 : x
  2. Step 2: Convert to fraction form
    51,478.92/71,040.33 = 28,817.55/x
  3. Step 3: Cross multiply
    51,478.92x = 71,040.33 × 28,817.55
  4. Step 4: Simplify right side
    51,478.92x = 2,047,208,261.79
  5. Step 5: Solve for x
    x = 2,047,208,261.79/51,478.92
  6. Step 6: Final answer
    x = 39,767.89

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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.