Home / 40,716.48-61,076.64-12,655.92

Finding the Fourth Proportional to 40,716.48, 61,076.64 and 12,655.92

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Solution

The fourth proportional to 40,716.48, 61,076.64 and 12,655.92 is: 18,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,716.48 : 61,076.64 = 12,655.92 : x
  2. Step 2: Convert to fraction form
    40,716.48/61,076.64 = 12,655.92/x
  3. Step 3: Cross multiply
    40,716.48x = 61,076.64 × 12,655.92
  4. Step 4: Simplify right side
    40,716.48x = 772,981,069.71
  5. Step 5: Solve for x
    x = 772,981,069.71/40,716.48
  6. Step 6: Final answer
    x = 18,984.48

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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.