Home / 78,569.42-108,428.21-44,579.32

Finding the Fourth Proportional to 78,569.42, 108,428.21 and 44,579.32

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Solution

The fourth proportional to 78,569.42, 108,428.21 and 44,579.32 is: 61,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,569.42 : 108,428.21 = 44,579.32 : x
  2. Step 2: Convert to fraction form
    78,569.42/108,428.21 = 44,579.32/x
  3. Step 3: Cross multiply
    78,569.42x = 108,428.21 × 44,579.32
  4. Step 4: Simplify right side
    78,569.42x = 4,833,656,253.14
  5. Step 5: Solve for x
    x = 4,833,656,253.14/78,569.42
  6. Step 6: Final answer
    x = 61,520.83

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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.