Home / 74,338.20-102,590.64-42,513.48

Finding the Fourth Proportional to 74,338.20, 102,590.64 and 42,513.48

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Solution

The fourth proportional to 74,338.20, 102,590.64 and 42,513.48 is: 58,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,338.20 : 102,590.64 = 42,513.48 : x
  2. Step 2: Convert to fraction form
    74,338.20/102,590.64 = 42,513.48/x
  3. Step 3: Cross multiply
    74,338.20x = 102,590.64 × 42,513.48
  4. Step 4: Simplify right side
    74,338.20x = 4,361,485,121.83
  5. Step 5: Solve for x
    x = 4,361,485,121.83/74,338.20
  6. Step 6: Final answer
    x = 58,670.85

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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.