Home / 51,278.92-70,762.62-28,616.68

Finding the Fourth Proportional to 51,278.92, 70,762.62 and 28,616.68

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Solution

The fourth proportional to 51,278.92, 70,762.62 and 28,616.68 is: 39,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.92 : 70,762.62 = 28,616.68 : x
  2. Step 2: Convert to fraction form
    51,278.92/70,762.62 = 28,616.68/x
  3. Step 3: Cross multiply
    51,278.92x = 70,762.62 × 28,616.68
  4. Step 4: Simplify right side
    51,278.92x = 2,024,991,252.50
  5. Step 5: Solve for x
    x = 2,024,991,252.50/51,278.92
  6. Step 6: Final answer
    x = 39,489.74

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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.