Home / 74,569.68-111,821.04-21,960.72

Finding the Fourth Proportional to 74,569.68, 111,821.04 and 21,960.72

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Solution

The fourth proportional to 74,569.68, 111,821.04 and 21,960.72 is: 32,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,569.68 : 111,821.04 = 21,960.72 : x
  2. Step 2: Convert to fraction form
    74,569.68/111,821.04 = 21,960.72/x
  3. Step 3: Cross multiply
    74,569.68x = 111,821.04 × 21,960.72
  4. Step 4: Simplify right side
    74,569.68x = 2,455,670,549.55
  5. Step 5: Solve for x
    x = 2,455,670,549.55/74,569.68
  6. Step 6: Final answer
    x = 32,931.22

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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.