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Finding the Fourth Proportional to 45,454.48, 68,076 and 43,877.71

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Solution

The fourth proportional to 45,454.48, 68,076 and 43,877.71 is: 65,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,454.48 : 68,076 = 43,877.71 : x
  2. Step 2: Convert to fraction form
    45,454.48/68,076 = 43,877.71/x
  3. Step 3: Cross multiply
    45,454.48x = 68,076 × 43,877.71
  4. Step 4: Simplify right side
    45,454.48x = 2,987,018,985.96
  5. Step 5: Solve for x
    x = 2,987,018,985.96/45,454.48
  6. Step 6: Final answer
    x = 65,714.51

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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.