Home / 74,763.29-103,172.04-40,772.04

Finding the Fourth Proportional to 74,763.29, 103,172.04 and 40,772.04

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Solution

The fourth proportional to 74,763.29, 103,172.04 and 40,772.04 is: 56,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763.29 : 103,172.04 = 40,772.04 : x
  2. Step 2: Convert to fraction form
    74,763.29/103,172.04 = 40,772.04/x
  3. Step 3: Cross multiply
    74,763.29x = 103,172.04 × 40,772.04
  4. Step 4: Simplify right side
    74,763.29x = 4,206,534,541.76
  5. Step 5: Solve for x
    x = 4,206,534,541.76/74,763.29
  6. Step 6: Final answer
    x = 56,264.71

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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.