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Finding the Fourth Proportional to 60,400.70, 90,601.05 and 54,860.30

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Solution

The fourth proportional to 60,400.70, 90,601.05 and 54,860.30 is: 82,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,400.70 : 90,601.05 = 54,860.30 : x
  2. Step 2: Convert to fraction form
    60,400.70/90,601.05 = 54,860.30/x
  3. Step 3: Cross multiply
    60,400.70x = 90,601.05 × 54,860.30
  4. Step 4: Simplify right side
    60,400.70x = 4,970,400,783.32
  5. Step 5: Solve for x
    x = 4,970,400,783.32/60,400.70
  6. Step 6: Final answer
    x = 82,290.45

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Similar ratio
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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.