Home / 90,865.08-136,317.05-27,690.26

Finding the Fourth Proportional to 90,865.08, 136,317.05 and 27,690.26

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Solution

The fourth proportional to 90,865.08, 136,317.05 and 27,690.26 is: 41,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,865.08 : 136,317.05 = 27,690.26 : x
  2. Step 2: Convert to fraction form
    90,865.08/136,317.05 = 27,690.26/x
  3. Step 3: Cross multiply
    90,865.08x = 136,317.05 × 27,690.26
  4. Step 4: Simplify right side
    90,865.08x = 3,774,653,736.90
  5. Step 5: Solve for x
    x = 3,774,653,736.90/90,865.08
  6. Step 6: Final answer
    x = 41,541.30

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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.