Home / 90,219.02-135,337.62-31,046.90

Finding the Fourth Proportional to 90,219.02, 135,337.62 and 31,046.90

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Solution

The fourth proportional to 90,219.02, 135,337.62 and 31,046.90 is: 46,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,219.02 : 135,337.62 = 31,046.90 : x
  2. Step 2: Convert to fraction form
    90,219.02/135,337.62 = 31,046.90/x
  3. Step 3: Cross multiply
    90,219.02x = 135,337.62 × 31,046.90
  4. Step 4: Simplify right side
    90,219.02x = 4,201,813,554.38
  5. Step 5: Solve for x
    x = 4,201,813,554.38/90,219.02
  6. Step 6: Final answer
    x = 46,573.48

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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.