Home / 51,365.81-70,886.33-28,704.86

Finding the Fourth Proportional to 51,365.81, 70,886.33 and 28,704.86

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Solution

The fourth proportional to 51,365.81, 70,886.33 and 28,704.86 is: 39,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,365.81 : 70,886.33 = 28,704.86 : x
  2. Step 2: Convert to fraction form
    51,365.81/70,886.33 = 28,704.86/x
  3. Step 3: Cross multiply
    51,365.81x = 70,886.33 × 28,704.86
  4. Step 4: Simplify right side
    51,365.81x = 2,034,781,680.61
  5. Step 5: Solve for x
    x = 2,034,781,680.61/51,365.81
  6. Step 6: Final answer
    x = 39,613.55

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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.