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Finding the Fourth Proportional to 48,838.40, 73,257.60 and 40,965.20

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Solution

The fourth proportional to 48,838.40, 73,257.60 and 40,965.20 is: 61,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,838.40 : 73,257.60 = 40,965.20 : x
  2. Step 2: Convert to fraction form
    48,838.40/73,257.60 = 40,965.20/x
  3. Step 3: Cross multiply
    48,838.40x = 73,257.60 × 40,965.20
  4. Step 4: Simplify right side
    48,838.40x = 3,001,012,235.52
  5. Step 5: Solve for x
    x = 3,001,012,235.52/48,838.40
  6. Step 6: Final answer
    x = 61,447.80

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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.