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Finding the Fourth Proportional to 54,875.60, 82,486.20 and 50,728.40

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Solution

The fourth proportional to 54,875.60, 82,486.20 and 50,728.40 is: 76,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,875.60 : 82,486.20 = 50,728.40 : x
  2. Step 2: Convert to fraction form
    54,875.60/82,486.20 = 50,728.40/x
  3. Step 3: Cross multiply
    54,875.60x = 82,486.20 × 50,728.40
  4. Step 4: Simplify right side
    54,875.60x = 4,184,392,948.08
  5. Step 5: Solve for x
    x = 4,184,392,948.08/54,875.60
  6. Step 6: Final answer
    x = 76,252.34

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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.