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Finding the Fourth Proportional to 85,545.93, 128,249.56 and 35,663.43

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Solution

The fourth proportional to 85,545.93, 128,249.56 and 35,663.43 is: 53,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,545.93 : 128,249.56 = 35,663.43 : x
  2. Step 2: Convert to fraction form
    85,545.93/128,249.56 = 35,663.43/x
  3. Step 3: Cross multiply
    85,545.93x = 128,249.56 × 35,663.43
  4. Step 4: Simplify right side
    85,545.93x = 4,573,819,205.59
  5. Step 5: Solve for x
    x = 4,573,819,205.59/85,545.93
  6. Step 6: Final answer
    x = 53,466.24

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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.