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Finding the Fourth Proportional to 76,854.37, 115,281.33 and 26,934.39

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Solution

The fourth proportional to 76,854.37, 115,281.33 and 26,934.39 is: 40,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,854.37 : 115,281.33 = 26,934.39 : x
  2. Step 2: Convert to fraction form
    76,854.37/115,281.33 = 26,934.39/x
  3. Step 3: Cross multiply
    76,854.37x = 115,281.33 × 26,934.39
  4. Step 4: Simplify right side
    76,854.37x = 3,105,031,714.59
  5. Step 5: Solve for x
    x = 3,105,031,714.59/76,854.37
  6. Step 6: Final answer
    x = 40,401.50

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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.