Home / 60,128.20-90,206.34-17,434.53

Finding the Fourth Proportional to 60,128.20, 90,206.34 and 17,434.53

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Solution

The fourth proportional to 60,128.20, 90,206.34 and 17,434.53 is: 26,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,128.20 : 90,206.34 = 17,434.53 : x
  2. Step 2: Convert to fraction form
    60,128.20/90,206.34 = 17,434.53/x
  3. Step 3: Cross multiply
    60,128.20x = 90,206.34 × 17,434.53
  4. Step 4: Simplify right side
    60,128.20x = 1,572,705,140.92
  5. Step 5: Solve for x
    x = 1,572,705,140.92/60,128.20
  6. Step 6: Final answer
    x = 26,155.87

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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.