Home / 51,149.52-70,584-28,487.28

Finding the Fourth Proportional to 51,149.52, 70,584 and 28,487.28

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Solution

The fourth proportional to 51,149.52, 70,584 and 28,487.28 is: 39,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,149.52 : 70,584 = 28,487.28 : x
  2. Step 2: Convert to fraction form
    51,149.52/70,584 = 28,487.28/x
  3. Step 3: Cross multiply
    51,149.52x = 70,584 × 28,487.28
  4. Step 4: Simplify right side
    51,149.52x = 2,010,746,171.52
  5. Step 5: Solve for x
    x = 2,010,746,171.52/51,149.52
  6. Step 6: Final answer
    x = 39,311.14

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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.