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Finding the Fourth Proportional to 78,423.58, 108,200.64 and 44,426.62

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Solution

The fourth proportional to 78,423.58, 108,200.64 and 44,426.62 is: 61,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,423.58 : 108,200.64 = 44,426.62 : x
  2. Step 2: Convert to fraction form
    78,423.58/108,200.64 = 44,426.62/x
  3. Step 3: Cross multiply
    78,423.58x = 108,200.64 × 44,426.62
  4. Step 4: Simplify right side
    78,423.58x = 4,806,988,717.04
  5. Step 5: Solve for x
    x = 4,806,988,717.04/78,423.58
  6. Step 6: Final answer
    x = 61,295.20

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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.