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Finding the Fourth Proportional to 67,407.42, 101,121.66 and 29,980.56

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Solution

The fourth proportional to 67,407.42, 101,121.66 and 29,980.56 is: 44,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,407.42 : 101,121.66 = 29,980.56 : x
  2. Step 2: Convert to fraction form
    67,407.42/101,121.66 = 29,980.56/x
  3. Step 3: Cross multiply
    67,407.42x = 101,121.66 × 29,980.56
  4. Step 4: Simplify right side
    67,407.42x = 3,031,683,994.93
  5. Step 5: Solve for x
    x = 3,031,683,994.93/67,407.42
  6. Step 6: Final answer
    x = 44,975.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.