Home / 55,856.40-83,758.28-20,292.65

Finding the Fourth Proportional to 55,856.40, 83,758.28 and 20,292.65

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Solution

The fourth proportional to 55,856.40, 83,758.28 and 20,292.65 is: 30,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,856.40 : 83,758.28 = 20,292.65 : x
  2. Step 2: Convert to fraction form
    55,856.40/83,758.28 = 20,292.65/x
  3. Step 3: Cross multiply
    55,856.40x = 83,758.28 × 20,292.65
  4. Step 4: Simplify right side
    55,856.40x = 1,699,676,940.39
  5. Step 5: Solve for x
    x = 1,699,676,940.39/55,856.40
  6. Step 6: Final answer
    x = 30,429.40

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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.