Home / 90,127.60-135,268.20-40,284.40

Finding the Fourth Proportional to 90,127.60, 135,268.20 and 40,284.40

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Solution

The fourth proportional to 90,127.60, 135,268.20 and 40,284.40 is: 60,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,127.60 : 135,268.20 = 40,284.40 : x
  2. Step 2: Convert to fraction form
    90,127.60/135,268.20 = 40,284.40/x
  3. Step 3: Cross multiply
    90,127.60x = 135,268.20 × 40,284.40
  4. Step 4: Simplify right side
    90,127.60x = 5,449,198,276.08
  5. Step 5: Solve for x
    x = 5,449,198,276.08/90,127.60
  6. Step 6: Final answer
    x = 60,460.93

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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.