Home / 51,432.16-70,975.60-28,771.68

Finding the Fourth Proportional to 51,432.16, 70,975.60 and 28,771.68

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Solution

The fourth proportional to 51,432.16, 70,975.60 and 28,771.68 is: 39,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,432.16 : 70,975.60 = 28,771.68 : x
  2. Step 2: Convert to fraction form
    51,432.16/70,975.60 = 28,771.68/x
  3. Step 3: Cross multiply
    51,432.16x = 70,975.60 × 28,771.68
  4. Step 4: Simplify right side
    51,432.16x = 2,042,087,251.01
  5. Step 5: Solve for x
    x = 2,042,087,251.01/51,432.16
  6. Step 6: Final answer
    x = 39,704.48

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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.