Home / 74,964.76-103,455.60-40,976.38

Finding the Fourth Proportional to 74,964.76, 103,455.60 and 40,976.38

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Solution

The fourth proportional to 74,964.76, 103,455.60 and 40,976.38 is: 56,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,964.76 : 103,455.60 = 40,976.38 : x
  2. Step 2: Convert to fraction form
    74,964.76/103,455.60 = 40,976.38/x
  3. Step 3: Cross multiply
    74,964.76x = 103,455.60 × 40,976.38
  4. Step 4: Simplify right side
    74,964.76x = 4,239,235,978.73
  5. Step 5: Solve for x
    x = 4,239,235,978.73/74,964.76
  6. Step 6: Final answer
    x = 56,549.72

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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.