Home / 90,085.32-135,107.31-33,931.26

Finding the Fourth Proportional to 90,085.32, 135,107.31 and 33,931.26

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Solution

The fourth proportional to 90,085.32, 135,107.31 and 33,931.26 is: 50,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,085.32 : 135,107.31 = 33,931.26 : x
  2. Step 2: Convert to fraction form
    90,085.32/135,107.31 = 33,931.26/x
  3. Step 3: Cross multiply
    90,085.32x = 135,107.31 × 33,931.26
  4. Step 4: Simplify right side
    90,085.32x = 4,584,361,263.51
  5. Step 5: Solve for x
    x = 4,584,361,263.51/90,085.32
  6. Step 6: Final answer
    x = 50,889.10

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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.