Home / 51,987.41-71,762.06-40,479.56

Finding the Fourth Proportional to 51,987.41, 71,762.06 and 40,479.56

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Solution

The fourth proportional to 51,987.41, 71,762.06 and 40,479.56 is: 55,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.41 : 71,762.06 = 40,479.56 : x
  2. Step 2: Convert to fraction form
    51,987.41/71,762.06 = 40,479.56/x
  3. Step 3: Cross multiply
    51,987.41x = 71,762.06 × 40,479.56
  4. Step 4: Simplify right side
    51,987.41x = 2,904,896,052.29
  5. Step 5: Solve for x
    x = 2,904,896,052.29/51,987.41
  6. Step 6: Final answer
    x = 55,876.92

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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.