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Finding the Fourth Proportional to 53,479.60, 80,219.40 and 27,235.60

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Solution

The fourth proportional to 53,479.60, 80,219.40 and 27,235.60 is: 40,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,479.60 : 80,219.40 = 27,235.60 : x
  2. Step 2: Convert to fraction form
    53,479.60/80,219.40 = 27,235.60/x
  3. Step 3: Cross multiply
    53,479.60x = 80,219.40 × 27,235.60
  4. Step 4: Simplify right side
    53,479.60x = 2,184,823,490.64
  5. Step 5: Solve for x
    x = 2,184,823,490.64/53,479.60
  6. Step 6: Final answer
    x = 40,853.40

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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.