Home / 51,778.55-71,454.81-28,808.71

Finding the Fourth Proportional to 51,778.55, 71,454.81 and 28,808.71

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Solution

The fourth proportional to 51,778.55, 71,454.81 and 28,808.71 is: 39,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,778.55 : 71,454.81 = 28,808.71 : x
  2. Step 2: Convert to fraction form
    51,778.55/71,454.81 = 28,808.71/x
  3. Step 3: Cross multiply
    51,778.55x = 71,454.81 × 28,808.71
  4. Step 4: Simplify right side
    51,778.55x = 2,058,520,828.79
  5. Step 5: Solve for x
    x = 2,058,520,828.79/51,778.55
  6. Step 6: Final answer
    x = 39,756.25

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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.