Home / 40,125.72-60,188.31-31,368

Finding the Fourth Proportional to 40,125.72, 60,188.31 and 31,368

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Solution

The fourth proportional to 40,125.72, 60,188.31 and 31,368 is: 47,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,125.72 : 60,188.31 = 31,368 : x
  2. Step 2: Convert to fraction form
    40,125.72/60,188.31 = 31,368/x
  3. Step 3: Cross multiply
    40,125.72x = 60,188.31 × 31,368
  4. Step 4: Simplify right side
    40,125.72x = 1,887,986,908.08
  5. Step 5: Solve for x
    x = 1,887,986,908.08/40,125.72
  6. Step 6: Final answer
    x = 47,051.79

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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.