Home / 74,623.11-102,987.15-55,727.43

Finding the Fourth Proportional to 74,623.11, 102,987.15 and 55,727.43

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Solution

The fourth proportional to 74,623.11, 102,987.15 and 55,727.43 is: 76,909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,623.11 : 102,987.15 = 55,727.43 : x
  2. Step 2: Convert to fraction form
    74,623.11/102,987.15 = 55,727.43/x
  3. Step 3: Cross multiply
    74,623.11x = 102,987.15 × 55,727.43
  4. Step 4: Simplify right side
    74,623.11x = 5,739,209,192.52
  5. Step 5: Solve for x
    x = 5,739,209,192.52/74,623.11
  6. Step 6: Final answer
    x = 76,909.27

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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.