Home / 40,724.21-61,095.89-12,642.83

Finding the Fourth Proportional to 40,724.21, 61,095.89 and 12,642.83

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Solution

The fourth proportional to 40,724.21, 61,095.89 and 12,642.83 is: 18,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,724.21 : 61,095.89 = 12,642.83 : x
  2. Step 2: Convert to fraction form
    40,724.21/61,095.89 = 12,642.83/x
  3. Step 3: Cross multiply
    40,724.21x = 61,095.89 × 12,642.83
  4. Step 4: Simplify right side
    40,724.21x = 772,424,950.97
  5. Step 5: Solve for x
    x = 772,424,950.97/40,724.21
  6. Step 6: Final answer
    x = 18,967.22

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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.