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Finding the Fourth Proportional to 75,108.58, 103,648.89 and 45,300.58

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Solution

The fourth proportional to 75,108.58, 103,648.89 and 45,300.58 is: 62,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,108.58 : 103,648.89 = 45,300.58 : x
  2. Step 2: Convert to fraction form
    75,108.58/103,648.89 = 45,300.58/x
  3. Step 3: Cross multiply
    75,108.58x = 103,648.89 × 45,300.58
  4. Step 4: Simplify right side
    75,108.58x = 4,695,354,833.36
  5. Step 5: Solve for x
    x = 4,695,354,833.36/75,108.58
  6. Step 6: Final answer
    x = 62,514.23

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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.