Home / 51,987.72-71,658.42-40,637.18

Finding the Fourth Proportional to 51,987.72, 71,658.42 and 40,637.18

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Solution

The fourth proportional to 51,987.72, 71,658.42 and 40,637.18 is: 56,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.72 : 71,658.42 = 40,637.18 : x
  2. Step 2: Convert to fraction form
    51,987.72/71,658.42 = 40,637.18/x
  3. Step 3: Cross multiply
    51,987.72x = 71,658.42 × 40,637.18
  4. Step 4: Simplify right side
    51,987.72x = 2,911,996,112.06
  5. Step 5: Solve for x
    x = 2,911,996,112.06/51,987.72
  6. Step 6: Final answer
    x = 56,013.15

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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.