Home / 90,281.52-135,348.40-34,089.75

Finding the Fourth Proportional to 90,281.52, 135,348.40 and 34,089.75

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Solution

The fourth proportional to 90,281.52, 135,348.40 and 34,089.75 is: 51,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281.52 : 135,348.40 = 34,089.75 : x
  2. Step 2: Convert to fraction form
    90,281.52/135,348.40 = 34,089.75/x
  3. Step 3: Cross multiply
    90,281.52x = 135,348.40 × 34,089.75
  4. Step 4: Simplify right side
    90,281.52x = 4,613,993,118.90
  5. Step 5: Solve for x
    x = 4,613,993,118.90/90,281.52
  6. Step 6: Final answer
    x = 51,106.73

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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.