Home / 90,116.35-135,068.41-36,775.05

Finding the Fourth Proportional to 90,116.35, 135,068.41 and 36,775.05

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Solution

The fourth proportional to 90,116.35, 135,068.41 and 36,775.05 is: 55,119.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,116.35 : 135,068.41 = 36,775.05 : x
  2. Step 2: Convert to fraction form
    90,116.35/135,068.41 = 36,775.05/x
  3. Step 3: Cross multiply
    90,116.35x = 135,068.41 × 36,775.05
  4. Step 4: Simplify right side
    90,116.35x = 4,967,147,070.63
  5. Step 5: Solve for x
    x = 4,967,147,070.63/90,116.35
  6. Step 6: Final answer
    x = 55,119.27

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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.