Home / 90,002.47-135,022.80-30,822.25

Finding the Fourth Proportional to 90,002.47, 135,022.80 and 30,822.25

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Solution

The fourth proportional to 90,002.47, 135,022.80 and 30,822.25 is: 46,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,002.47 : 135,022.80 = 30,822.25 : x
  2. Step 2: Convert to fraction form
    90,002.47/135,022.80 = 30,822.25/x
  3. Step 3: Cross multiply
    90,002.47x = 135,022.80 × 30,822.25
  4. Step 4: Simplify right side
    90,002.47x = 4,161,706,497.30
  5. Step 5: Solve for x
    x = 4,161,706,497.30/90,002.47
  6. Step 6: Final answer
    x = 46,239.91

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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.