Home / 90,271.62-135,424.08-30,294.18

Finding the Fourth Proportional to 90,271.62, 135,424.08 and 30,294.18

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Solution

The fourth proportional to 90,271.62, 135,424.08 and 30,294.18 is: 45,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,271.62 : 135,424.08 = 30,294.18 : x
  2. Step 2: Convert to fraction form
    90,271.62/135,424.08 = 30,294.18/x
  3. Step 3: Cross multiply
    90,271.62x = 135,424.08 × 30,294.18
  4. Step 4: Simplify right side
    90,271.62x = 4,102,561,455.85
  5. Step 5: Solve for x
    x = 4,102,561,455.85/90,271.62
  6. Step 6: Final answer
    x = 45,446.86

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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.