Home / 78,977.08-118,398.98-36,834.96

Finding the Fourth Proportional to 78,977.08, 118,398.98 and 36,834.96

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Solution

The fourth proportional to 78,977.08, 118,398.98 and 36,834.96 is: 55,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,977.08 : 118,398.98 = 36,834.96 : x
  2. Step 2: Convert to fraction form
    78,977.08/118,398.98 = 36,834.96/x
  3. Step 3: Cross multiply
    78,977.08x = 118,398.98 × 36,834.96
  4. Step 4: Simplify right side
    78,977.08x = 4,361,221,100.35
  5. Step 5: Solve for x
    x = 4,361,221,100.35/78,977.08
  6. Step 6: Final answer
    x = 55,221.35

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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.