Home / 75,618.72-104,338.80-42,078.24

Finding the Fourth Proportional to 75,618.72, 104,338.80 and 42,078.24

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Solution

The fourth proportional to 75,618.72, 104,338.80 and 42,078.24 is: 58,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,618.72 : 104,338.80 = 42,078.24 : x
  2. Step 2: Convert to fraction form
    75,618.72/104,338.80 = 42,078.24/x
  3. Step 3: Cross multiply
    75,618.72x = 104,338.80 × 42,078.24
  4. Step 4: Simplify right side
    75,618.72x = 4,390,393,067.71
  5. Step 5: Solve for x
    x = 4,390,393,067.71/75,618.72
  6. Step 6: Final answer
    x = 58,059.61

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1.5x scale

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.