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Finding the Fourth Proportional to 50,888.70, 70,227.14 and 30,742.79

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Solution

The fourth proportional to 50,888.70, 70,227.14 and 30,742.79 is: 42,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,888.70 : 70,227.14 = 30,742.79 : x
  2. Step 2: Convert to fraction form
    50,888.70/70,227.14 = 30,742.79/x
  3. Step 3: Cross multiply
    50,888.70x = 70,227.14 × 30,742.79
  4. Step 4: Simplify right side
    50,888.70x = 2,158,977,712.47
  5. Step 5: Solve for x
    x = 2,158,977,712.47/50,888.70
  6. Step 6: Final answer
    x = 42,425.48

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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.