Home / 90,661.68-136,047.24-64,583.28

Finding the Fourth Proportional to 90,661.68, 136,047.24 and 64,583.28

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Solution

The fourth proportional to 90,661.68, 136,047.24 and 64,583.28 is: 96,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,661.68 : 136,047.24 = 64,583.28 : x
  2. Step 2: Convert to fraction form
    90,661.68/136,047.24 = 64,583.28/x
  3. Step 3: Cross multiply
    90,661.68x = 136,047.24 × 64,583.28
  4. Step 4: Simplify right side
    90,661.68x = 8,786,376,994.15
  5. Step 5: Solve for x
    x = 8,786,376,994.15/90,661.68
  6. Step 6: Final answer
    x = 96,913.90

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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.