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Finding the Fourth Proportional to 76,508.80, 114,781.64 and 26,581.63

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Solution

The fourth proportional to 76,508.80, 114,781.64 and 26,581.63 is: 39,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,508.80 : 114,781.64 = 26,581.63 : x
  2. Step 2: Convert to fraction form
    76,508.80/114,781.64 = 26,581.63/x
  3. Step 3: Cross multiply
    76,508.80x = 114,781.64 × 26,581.63
  4. Step 4: Simplify right side
    76,508.80x = 3,051,083,085.27
  5. Step 5: Solve for x
    x = 3,051,083,085.27/76,508.80
  6. Step 6: Final answer
    x = 39,878.85

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1.5x scale

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.