Home / 75,018.69-112,545.55-21,708.54

Finding the Fourth Proportional to 75,018.69, 112,545.55 and 21,708.54

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Solution

The fourth proportional to 75,018.69, 112,545.55 and 21,708.54 is: 32,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,018.69 : 112,545.55 = 21,708.54 : x
  2. Step 2: Convert to fraction form
    75,018.69/112,545.55 = 21,708.54/x
  3. Step 3: Cross multiply
    75,018.69x = 112,545.55 × 21,708.54
  4. Step 4: Simplify right side
    75,018.69x = 2,443,199,601.13
  5. Step 5: Solve for x
    x = 2,443,199,601.13/75,018.69
  6. Step 6: Final answer
    x = 32,567.88

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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.