Home / 78,552.23-108,467.55-72,853.88

Finding the Fourth Proportional to 78,552.23, 108,467.55 and 72,853.88

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Solution

The fourth proportional to 78,552.23, 108,467.55 and 72,853.88 is: 100,599.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.23 : 108,467.55 = 72,853.88 : x
  2. Step 2: Convert to fraction form
    78,552.23/108,467.55 = 72,853.88/x
  3. Step 3: Cross multiply
    78,552.23x = 108,467.55 × 72,853.88
  4. Step 4: Simplify right side
    78,552.23x = 7,902,281,329.26
  5. Step 5: Solve for x
    x = 7,902,281,329.26/78,552.23
  6. Step 6: Final answer
    x = 100,599.08

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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.