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Finding the Fourth Proportional to 51,377.80, 77,009.10 and 26,408.20

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Solution

The fourth proportional to 51,377.80, 77,009.10 and 26,408.20 is: 39,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.80 : 77,009.10 = 26,408.20 : x
  2. Step 2: Convert to fraction form
    51,377.80/77,009.10 = 26,408.20/x
  3. Step 3: Cross multiply
    51,377.80x = 77,009.10 × 26,408.20
  4. Step 4: Simplify right side
    51,377.80x = 2,033,671,714.62
  5. Step 5: Solve for x
    x = 2,033,671,714.62/51,377.80
  6. Step 6: Final answer
    x = 39,582.69

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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.