Home / 90,694.08-136,044.16-31,530.26

Finding the Fourth Proportional to 90,694.08, 136,044.16 and 31,530.26

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Solution

The fourth proportional to 90,694.08, 136,044.16 and 31,530.26 is: 47,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,694.08 : 136,044.16 = 31,530.26 : x
  2. Step 2: Convert to fraction form
    90,694.08/136,044.16 = 31,530.26/x
  3. Step 3: Cross multiply
    90,694.08x = 136,044.16 × 31,530.26
  4. Step 4: Simplify right side
    90,694.08x = 4,289,507,997.57
  5. Step 5: Solve for x
    x = 4,289,507,997.57/90,694.08
  6. Step 6: Final answer
    x = 47,296.45

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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.