Home / 90,471.06-124,850.34-54,654.48

Finding the Fourth Proportional to 90,471.06, 124,850.34 and 54,654.48

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Solution

The fourth proportional to 90,471.06, 124,850.34 and 54,654.48 is: 75,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,471.06 : 124,850.34 = 54,654.48 : x
  2. Step 2: Convert to fraction form
    90,471.06/124,850.34 = 54,654.48/x
  3. Step 3: Cross multiply
    90,471.06x = 124,850.34 × 54,654.48
  4. Step 4: Simplify right side
    90,471.06x = 6,823,630,410.52
  5. Step 5: Solve for x
    x = 6,823,630,410.52/90,471.06
  6. Step 6: Final answer
    x = 75,423.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.