Home / 60,629.80-90,923.10-21,188.20

Finding the Fourth Proportional to 60,629.80, 90,923.10 and 21,188.20

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Solution

The fourth proportional to 60,629.80, 90,923.10 and 21,188.20 is: 31,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,629.80 : 90,923.10 = 21,188.20 : x
  2. Step 2: Convert to fraction form
    60,629.80/90,923.10 = 21,188.20/x
  3. Step 3: Cross multiply
    60,629.80x = 90,923.10 × 21,188.20
  4. Step 4: Simplify right side
    60,629.80x = 1,926,496,827.42
  5. Step 5: Solve for x
    x = 1,926,496,827.42/60,629.80
  6. Step 6: Final answer
    x = 31,774.75

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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.