Home / 90,025.40-135,054.50-30,867.04

Finding the Fourth Proportional to 90,025.40, 135,054.50 and 30,867.04

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Solution

The fourth proportional to 90,025.40, 135,054.50 and 30,867.04 is: 46,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.40 : 135,054.50 = 30,867.04 : x
  2. Step 2: Convert to fraction form
    90,025.40/135,054.50 = 30,867.04/x
  3. Step 3: Cross multiply
    90,025.40x = 135,054.50 × 30,867.04
  4. Step 4: Simplify right side
    90,025.40x = 4,168,732,653.68
  5. Step 5: Solve for x
    x = 4,168,732,653.68/90,025.40
  6. Step 6: Final answer
    x = 46,306.18

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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.