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Finding the Fourth Proportional to 60,383.80, 90,575.67 and 18,830.80

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Solution

The fourth proportional to 60,383.80, 90,575.67 and 18,830.80 is: 28,246.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,383.80 : 90,575.67 = 18,830.80 : x
  2. Step 2: Convert to fraction form
    60,383.80/90,575.67 = 18,830.80/x
  3. Step 3: Cross multiply
    60,383.80x = 90,575.67 × 18,830.80
  4. Step 4: Simplify right side
    60,383.80x = 1,705,612,326.64
  5. Step 5: Solve for x
    x = 1,705,612,326.64/60,383.80
  6. Step 6: Final answer
    x = 28,246.19

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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.