Home / 51,431.66-70,972.34-28,766.72

Finding the Fourth Proportional to 51,431.66, 70,972.34 and 28,766.72

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Solution

The fourth proportional to 51,431.66, 70,972.34 and 28,766.72 is: 39,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.66 : 70,972.34 = 28,766.72 : x
  2. Step 2: Convert to fraction form
    51,431.66/70,972.34 = 28,766.72/x
  3. Step 3: Cross multiply
    51,431.66x = 70,972.34 × 28,766.72
  4. Step 4: Simplify right side
    51,431.66x = 2,041,641,432.52
  5. Step 5: Solve for x
    x = 2,041,641,432.52/51,431.66
  6. Step 6: Final answer
    x = 39,696.20

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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.