Home / 60,203.42-90,308.97-20,220.78

Finding the Fourth Proportional to 60,203.42, 90,308.97 and 20,220.78

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Solution

The fourth proportional to 60,203.42, 90,308.97 and 20,220.78 is: 30,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,203.42 : 90,308.97 = 20,220.78 : x
  2. Step 2: Convert to fraction form
    60,203.42/90,308.97 = 20,220.78/x
  3. Step 3: Cross multiply
    60,203.42x = 90,308.97 × 20,220.78
  4. Step 4: Simplify right side
    60,203.42x = 1,826,117,814.40
  5. Step 5: Solve for x
    x = 1,826,117,814.40/60,203.42
  6. Step 6: Final answer
    x = 30,332.46

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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.