Home / 90,619.12-136,011.70-48,546.70

Finding the Fourth Proportional to 90,619.12, 136,011.70 and 48,546.70

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Solution

The fourth proportional to 90,619.12, 136,011.70 and 48,546.70 is: 72,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,619.12 : 136,011.70 = 48,546.70 : x
  2. Step 2: Convert to fraction form
    90,619.12/136,011.70 = 48,546.70/x
  3. Step 3: Cross multiply
    90,619.12x = 136,011.70 × 48,546.70
  4. Step 4: Simplify right side
    90,619.12x = 6,602,919,196.39
  5. Step 5: Solve for x
    x = 6,602,919,196.39/90,619.12
  6. Step 6: Final answer
    x = 72,864.53

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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.