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Finding the Fourth Proportional to 60,202.64, 90,321.77 and 20,763.74

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Solution

The fourth proportional to 60,202.64, 90,321.77 and 20,763.74 is: 31,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,202.64 : 90,321.77 = 20,763.74 : x
  2. Step 2: Convert to fraction form
    60,202.64/90,321.77 = 20,763.74/x
  3. Step 3: Cross multiply
    60,202.64x = 90,321.77 × 20,763.74
  4. Step 4: Simplify right side
    60,202.64x = 1,875,417,348.92
  5. Step 5: Solve for x
    x = 1,875,417,348.92/60,202.64
  6. Step 6: Final answer
    x = 31,151.75

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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.