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Finding the Fourth Proportional to 76,874.74, 106,044.49 and 45,037.49

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Solution

The fourth proportional to 76,874.74, 106,044.49 and 45,037.49 is: 62,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,874.74 : 106,044.49 = 45,037.49 : x
  2. Step 2: Convert to fraction form
    76,874.74/106,044.49 = 45,037.49/x
  3. Step 3: Cross multiply
    76,874.74x = 106,044.49 × 45,037.49
  4. Step 4: Simplify right side
    76,874.74x = 4,775,977,184.00
  5. Step 5: Solve for x
    x = 4,775,977,184.00/76,874.74
  6. Step 6: Final answer
    x = 62,126.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.