Home / 51,354.52-70,862.18-28,690.70

Finding the Fourth Proportional to 51,354.52, 70,862.18 and 28,690.70

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Solution

The fourth proportional to 51,354.52, 70,862.18 and 28,690.70 is: 39,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,354.52 : 70,862.18 = 28,690.70 : x
  2. Step 2: Convert to fraction form
    51,354.52/70,862.18 = 28,690.70/x
  3. Step 3: Cross multiply
    51,354.52x = 70,862.18 × 28,690.70
  4. Step 4: Simplify right side
    51,354.52x = 2,033,085,049.96
  5. Step 5: Solve for x
    x = 2,033,085,049.96/51,354.52
  6. Step 6: Final answer
    x = 39,589.22

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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.