Home / 74,456.40-102,750.24-40,465.20

Finding the Fourth Proportional to 74,456.40, 102,750.24 and 40,465.20

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Solution

The fourth proportional to 74,456.40, 102,750.24 and 40,465.20 is: 55,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456.40 : 102,750.24 = 40,465.20 : x
  2. Step 2: Convert to fraction form
    74,456.40/102,750.24 = 40,465.20/x
  3. Step 3: Cross multiply
    74,456.40x = 102,750.24 × 40,465.20
  4. Step 4: Simplify right side
    74,456.40x = 4,157,809,011.65
  5. Step 5: Solve for x
    x = 4,157,809,011.65/74,456.40
  6. Step 6: Final answer
    x = 55,842.20

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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.