Home / 51,042.03-70,439.45-30,902.55

Finding the Fourth Proportional to 51,042.03, 70,439.45 and 30,902.55

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Solution

The fourth proportional to 51,042.03, 70,439.45 and 30,902.55 is: 42,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.03 : 70,439.45 = 30,902.55 : x
  2. Step 2: Convert to fraction form
    51,042.03/70,439.45 = 30,902.55/x
  3. Step 3: Cross multiply
    51,042.03x = 70,439.45 × 30,902.55
  4. Step 4: Simplify right side
    51,042.03x = 2,176,758,471.08
  5. Step 5: Solve for x
    x = 2,176,758,471.08/51,042.03
  6. Step 6: Final answer
    x = 42,646.39

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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.