Home / 40,727.91-61,101.43-12,646.52

Finding the Fourth Proportional to 40,727.91, 61,101.43 and 12,646.52

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Solution

The fourth proportional to 40,727.91, 61,101.43 and 12,646.52 is: 18,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,727.91 : 61,101.43 = 12,646.52 : x
  2. Step 2: Convert to fraction form
    40,727.91/61,101.43 = 12,646.52/x
  3. Step 3: Cross multiply
    40,727.91x = 61,101.43 × 12,646.52
  4. Step 4: Simplify right side
    40,727.91x = 772,720,119.40
  5. Step 5: Solve for x
    x = 772,720,119.40/40,727.91
  6. Step 6: Final answer
    x = 18,972.74

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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.