Home / 90,144.18-124,394.09-49,855.59

Finding the Fourth Proportional to 90,144.18, 124,394.09 and 49,855.59

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Solution

The fourth proportional to 90,144.18, 124,394.09 and 49,855.59 is: 68,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144.18 : 124,394.09 = 49,855.59 : x
  2. Step 2: Convert to fraction form
    90,144.18/124,394.09 = 49,855.59/x
  3. Step 3: Cross multiply
    90,144.18x = 124,394.09 × 49,855.59
  4. Step 4: Simplify right side
    90,144.18x = 6,201,740,500.19
  5. Step 5: Solve for x
    x = 6,201,740,500.19/90,144.18
  6. Step 6: Final answer
    x = 68,798.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.