Home / 74,783.28-103,195.62-42,082.47

Finding the Fourth Proportional to 74,783.28, 103,195.62 and 42,082.47

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Solution

The fourth proportional to 74,783.28, 103,195.62 and 42,082.47 is: 58,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,783.28 : 103,195.62 = 42,082.47 : x
  2. Step 2: Convert to fraction form
    74,783.28/103,195.62 = 42,082.47/x
  3. Step 3: Cross multiply
    74,783.28x = 103,195.62 × 42,082.47
  4. Step 4: Simplify right side
    74,783.28x = 4,342,726,582.78
  5. Step 5: Solve for x
    x = 4,342,726,582.78/74,783.28
  6. Step 6: Final answer
    x = 58,070.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.