Home / 90,680.88-136,044.36-53,272.58

Finding the Fourth Proportional to 90,680.88, 136,044.36 and 53,272.58

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Solution

The fourth proportional to 90,680.88, 136,044.36 and 53,272.58 is: 79,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,680.88 : 136,044.36 = 53,272.58 : x
  2. Step 2: Convert to fraction form
    90,680.88/136,044.36 = 53,272.58/x
  3. Step 3: Cross multiply
    90,680.88x = 136,044.36 × 53,272.58
  4. Step 4: Simplify right side
    90,680.88x = 7,247,434,051.65
  5. Step 5: Solve for x
    x = 7,247,434,051.65/90,680.88
  6. Step 6: Final answer
    x = 79,922.41

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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.