Home / 90,517.02-135,775.52-28,192.38

Finding the Fourth Proportional to 90,517.02, 135,775.52 and 28,192.38

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Solution

The fourth proportional to 90,517.02, 135,775.52 and 28,192.38 is: 42,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.02 : 135,775.52 = 28,192.38 : x
  2. Step 2: Convert to fraction form
    90,517.02/135,775.52 = 28,192.38/x
  3. Step 3: Cross multiply
    90,517.02x = 135,775.52 × 28,192.38
  4. Step 4: Simplify right side
    90,517.02x = 3,827,835,054.54
  5. Step 5: Solve for x
    x = 3,827,835,054.54/90,517.02
  6. Step 6: Final answer
    x = 42,288.57

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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.