Home / 40,126.72-60,189.81-31,369

Finding the Fourth Proportional to 40,126.72, 60,189.81 and 31,369

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Solution

The fourth proportional to 40,126.72, 60,189.81 and 31,369 is: 47,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,126.72 : 60,189.81 = 31,369 : x
  2. Step 2: Convert to fraction form
    40,126.72/60,189.81 = 31,369/x
  3. Step 3: Cross multiply
    40,126.72x = 60,189.81 × 31,369
  4. Step 4: Simplify right side
    40,126.72x = 1,888,094,149.89
  5. Step 5: Solve for x
    x = 1,888,094,149.89/40,126.72
  6. Step 6: Final answer
    x = 47,053.29

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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.