Home / 60,129.04-90,175.32-20,663.44

Finding the Fourth Proportional to 60,129.04, 90,175.32 and 20,663.44

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Solution

The fourth proportional to 60,129.04, 90,175.32 and 20,663.44 is: 30,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,129.04 : 90,175.32 = 20,663.44 : x
  2. Step 2: Convert to fraction form
    60,129.04/90,175.32 = 20,663.44/x
  3. Step 3: Cross multiply
    60,129.04x = 90,175.32 × 20,663.44
  4. Step 4: Simplify right side
    60,129.04x = 1,863,332,314.30
  5. Step 5: Solve for x
    x = 1,863,332,314.30/60,129.04
  6. Step 6: Final answer
    x = 30,988.89

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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.