Home / 42,778.74-64,125.05-17,832.60

Finding the Fourth Proportional to 42,778.74, 64,125.05 and 17,832.60

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Solution

The fourth proportional to 42,778.74, 64,125.05 and 17,832.60 is: 26,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,778.74 : 64,125.05 = 17,832.60 : x
  2. Step 2: Convert to fraction form
    42,778.74/64,125.05 = 17,832.60/x
  3. Step 3: Cross multiply
    42,778.74x = 64,125.05 × 17,832.60
  4. Step 4: Simplify right side
    42,778.74x = 1,143,516,277.47
  5. Step 5: Solve for x
    x = 1,143,516,277.47/42,778.74
  6. Step 6: Final answer
    x = 26,730.95

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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.