Home / 78,636.80-108,528.38-44,655.98

Finding the Fourth Proportional to 78,636.80, 108,528.38 and 44,655.98

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Solution

The fourth proportional to 78,636.80, 108,528.38 and 44,655.98 is: 61,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636.80 : 108,528.38 = 44,655.98 : x
  2. Step 2: Convert to fraction form
    78,636.80/108,528.38 = 44,655.98/x
  3. Step 3: Cross multiply
    78,636.80x = 108,528.38 × 44,655.98
  4. Step 4: Simplify right side
    78,636.80x = 4,846,441,166.71
  5. Step 5: Solve for x
    x = 4,846,441,166.71/78,636.80
  6. Step 6: Final answer
    x = 61,630.70

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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.