Home / 57,271.38-85,814.73-30,988.50

Finding the Fourth Proportional to 57,271.38, 85,814.73 and 30,988.50

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Solution

The fourth proportional to 57,271.38, 85,814.73 and 30,988.50 is: 46,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.38 : 85,814.73 = 30,988.50 : x
  2. Step 2: Convert to fraction form
    57,271.38/85,814.73 = 30,988.50/x
  3. Step 3: Cross multiply
    57,271.38x = 85,814.73 × 30,988.50
  4. Step 4: Simplify right side
    57,271.38x = 2,659,269,760.61
  5. Step 5: Solve for x
    x = 2,659,269,760.61/57,271.38
  6. Step 6: Final answer
    x = 46,432.79

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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.