Home / 90,652.83-135,932.52-40,690.08

Finding the Fourth Proportional to 90,652.83, 135,932.52 and 40,690.08

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Solution

The fourth proportional to 90,652.83, 135,932.52 and 40,690.08 is: 61,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,652.83 : 135,932.52 = 40,690.08 : x
  2. Step 2: Convert to fraction form
    90,652.83/135,932.52 = 40,690.08/x
  3. Step 3: Cross multiply
    90,652.83x = 135,932.52 × 40,690.08
  4. Step 4: Simplify right side
    90,652.83x = 5,531,105,113.40
  5. Step 5: Solve for x
    x = 5,531,105,113.40/90,652.83
  6. Step 6: Final answer
    x = 61,014.15

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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.