Home / 51,143.45-70,572.89-28,481.55

Finding the Fourth Proportional to 51,143.45, 70,572.89 and 28,481.55

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Solution

The fourth proportional to 51,143.45, 70,572.89 and 28,481.55 is: 39,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.45 : 70,572.89 = 28,481.55 : x
  2. Step 2: Convert to fraction form
    51,143.45/70,572.89 = 28,481.55/x
  3. Step 3: Cross multiply
    51,143.45x = 70,572.89 × 28,481.55
  4. Step 4: Simplify right side
    51,143.45x = 2,010,025,152.77
  5. Step 5: Solve for x
    x = 2,010,025,152.77/51,143.45
  6. Step 6: Final answer
    x = 39,301.72

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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.