Home / 42,785.16-64,194.17-17,818.53

Finding the Fourth Proportional to 42,785.16, 64,194.17 and 17,818.53

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Solution

The fourth proportional to 42,785.16, 64,194.17 and 17,818.53 is: 26,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.16 : 64,194.17 = 17,818.53 : x
  2. Step 2: Convert to fraction form
    42,785.16/64,194.17 = 17,818.53/x
  3. Step 3: Cross multiply
    42,785.16x = 64,194.17 × 17,818.53
  4. Step 4: Simplify right side
    42,785.16x = 1,143,845,743.97
  5. Step 5: Solve for x
    x = 1,143,845,743.97/42,785.16
  6. Step 6: Final answer
    x = 26,734.64

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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.