Home / 90,622.12-136,016.20-48,549.70

Finding the Fourth Proportional to 90,622.12, 136,016.20 and 48,549.70

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Solution

The fourth proportional to 90,622.12, 136,016.20 and 48,549.70 is: 72,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,622.12 : 136,016.20 = 48,549.70 : x
  2. Step 2: Convert to fraction form
    90,622.12/136,016.20 = 48,549.70/x
  3. Step 3: Cross multiply
    90,622.12x = 136,016.20 × 48,549.70
  4. Step 4: Simplify right side
    90,622.12x = 6,603,545,705.14
  5. Step 5: Solve for x
    x = 6,603,545,705.14/90,622.12
  6. Step 6: Final answer
    x = 72,869.03

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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.