Home / 72,450.29-108,534.72-40,763.75

Finding the Fourth Proportional to 72,450.29, 108,534.72 and 40,763.75

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Solution

The fourth proportional to 72,450.29, 108,534.72 and 40,763.75 is: 61,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,450.29 : 108,534.72 = 40,763.75 : x
  2. Step 2: Convert to fraction form
    72,450.29/108,534.72 = 40,763.75/x
  3. Step 3: Cross multiply
    72,450.29x = 108,534.72 × 40,763.75
  4. Step 4: Simplify right side
    72,450.29x = 4,424,281,649.73
  5. Step 5: Solve for x
    x = 4,424,281,649.73/72,450.29
  6. Step 6: Final answer
    x = 61,066.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.