Home / 78,771.96-118,158.30-22,613.04

Finding the Fourth Proportional to 78,771.96, 118,158.30 and 22,613.04

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Solution

The fourth proportional to 78,771.96, 118,158.30 and 22,613.04 is: 33,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,771.96 : 118,158.30 = 22,613.04 : x
  2. Step 2: Convert to fraction form
    78,771.96/118,158.30 = 22,613.04/x
  3. Step 3: Cross multiply
    78,771.96x = 118,158.30 × 22,613.04
  4. Step 4: Simplify right side
    78,771.96x = 2,671,918,364.23
  5. Step 5: Solve for x
    x = 2,671,918,364.23/78,771.96
  6. Step 6: Final answer
    x = 33,919.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.