Home / 90,454.57-135,688.35-23,894.05

Finding the Fourth Proportional to 90,454.57, 135,688.35 and 23,894.05

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Solution

The fourth proportional to 90,454.57, 135,688.35 and 23,894.05 is: 35,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,454.57 : 135,688.35 = 23,894.05 : x
  2. Step 2: Convert to fraction form
    90,454.57/135,688.35 = 23,894.05/x
  3. Step 3: Cross multiply
    90,454.57x = 135,688.35 × 23,894.05
  4. Step 4: Simplify right side
    90,454.57x = 3,242,144,219.32
  5. Step 5: Solve for x
    x = 3,242,144,219.32/90,454.57
  6. Step 6: Final answer
    x = 35,842.79

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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.