Home / 90,298.02-135,464.04-40,380.24

Finding the Fourth Proportional to 90,298.02, 135,464.04 and 40,380.24

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Solution

The fourth proportional to 90,298.02, 135,464.04 and 40,380.24 is: 60,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,298.02 : 135,464.04 = 40,380.24 : x
  2. Step 2: Convert to fraction form
    90,298.02/135,464.04 = 40,380.24/x
  3. Step 3: Cross multiply
    90,298.02x = 135,464.04 × 40,380.24
  4. Step 4: Simplify right side
    90,298.02x = 5,470,070,446.57
  5. Step 5: Solve for x
    x = 5,470,070,446.57/90,298.02
  6. Step 6: Final answer
    x = 60,577.97

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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.