Home / 90,306.84-135,386.37-34,115.06

Finding the Fourth Proportional to 90,306.84, 135,386.37 and 34,115.06

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Solution

The fourth proportional to 90,306.84, 135,386.37 and 34,115.06 is: 51,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.84 : 135,386.37 = 34,115.06 : x
  2. Step 2: Convert to fraction form
    90,306.84/135,386.37 = 34,115.06/x
  3. Step 3: Cross multiply
    90,306.84x = 135,386.37 × 34,115.06
  4. Step 4: Simplify right side
    90,306.84x = 4,618,714,135.73
  5. Step 5: Solve for x
    x = 4,618,714,135.73/90,306.84
  6. Step 6: Final answer
    x = 51,144.68

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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.