Home / 90,954.48-136,425.06-28,642.80

Finding the Fourth Proportional to 90,954.48, 136,425.06 and 28,642.80

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Solution

The fourth proportional to 90,954.48, 136,425.06 and 28,642.80 is: 42,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,954.48 : 136,425.06 = 28,642.80 : x
  2. Step 2: Convert to fraction form
    90,954.48/136,425.06 = 28,642.80/x
  3. Step 3: Cross multiply
    90,954.48x = 136,425.06 × 28,642.80
  4. Step 4: Simplify right side
    90,954.48x = 3,907,595,708.57
  5. Step 5: Solve for x
    x = 3,907,595,708.57/90,954.48
  6. Step 6: Final answer
    x = 42,962.10

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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.