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Finding the Fourth Proportional to 64,129.40, 88,452.64 and 45,013.44

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Solution

The fourth proportional to 64,129.40, 88,452.64 and 45,013.44 is: 62,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.40 : 88,452.64 = 45,013.44 : x
  2. Step 2: Convert to fraction form
    64,129.40/88,452.64 = 45,013.44/x
  3. Step 3: Cross multiply
    64,129.40x = 88,452.64 × 45,013.44
  4. Step 4: Simplify right side
    64,129.40x = 3,981,557,603.48
  5. Step 5: Solve for x
    x = 3,981,557,603.48/64,129.40
  6. Step 6: Final answer
    x = 62,086.31

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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.