Home / 55,855.46-83,756.87-20,291.70

Finding the Fourth Proportional to 55,855.46, 83,756.87 and 20,291.70

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Solution

The fourth proportional to 55,855.46, 83,756.87 and 20,291.70 is: 30,427.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.46 : 83,756.87 = 20,291.70 : x
  2. Step 2: Convert to fraction form
    55,855.46/83,756.87 = 20,291.70/x
  3. Step 3: Cross multiply
    55,855.46x = 83,756.87 × 20,291.70
  4. Step 4: Simplify right side
    55,855.46x = 1,699,569,253.61
  5. Step 5: Solve for x
    x = 1,699,569,253.61/55,855.46
  6. Step 6: Final answer
    x = 30,427.99

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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.