Home / 78,763.55-108,689.38-44,767.32

Finding the Fourth Proportional to 78,763.55, 108,689.38 and 44,767.32

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Solution

The fourth proportional to 78,763.55, 108,689.38 and 44,767.32 is: 61,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763.55 : 108,689.38 = 44,767.32 : x
  2. Step 2: Convert to fraction form
    78,763.55/108,689.38 = 44,767.32/x
  3. Step 3: Cross multiply
    78,763.55x = 108,689.38 × 44,767.32
  4. Step 4: Simplify right side
    78,763.55x = 4,865,732,382.95
  5. Step 5: Solve for x
    x = 4,865,732,382.95/78,763.55
  6. Step 6: Final answer
    x = 61,776.45

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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.