Home / 90,285.50-135,396.30-26,230.32

Finding the Fourth Proportional to 90,285.50, 135,396.30 and 26,230.32

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Solution

The fourth proportional to 90,285.50, 135,396.30 and 26,230.32 is: 39,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,285.50 : 135,396.30 = 26,230.32 : x
  2. Step 2: Convert to fraction form
    90,285.50/135,396.30 = 26,230.32/x
  3. Step 3: Cross multiply
    90,285.50x = 135,396.30 × 26,230.32
  4. Step 4: Simplify right side
    90,285.50x = 3,551,488,275.82
  5. Step 5: Solve for x
    x = 3,551,488,275.82/90,285.50
  6. Step 6: Final answer
    x = 39,336.20

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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.