Home / 90,455.57-135,689.85-23,895.05

Finding the Fourth Proportional to 90,455.57, 135,689.85 and 23,895.05

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Solution

The fourth proportional to 90,455.57, 135,689.85 and 23,895.05 is: 35,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,455.57 : 135,689.85 = 23,895.05 : x
  2. Step 2: Convert to fraction form
    90,455.57/135,689.85 = 23,895.05/x
  3. Step 3: Cross multiply
    90,455.57x = 135,689.85 × 23,895.05
  4. Step 4: Simplify right side
    90,455.57x = 3,242,315,750.24
  5. Step 5: Solve for x
    x = 3,242,315,750.24/90,455.57
  6. Step 6: Final answer
    x = 35,844.29

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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.