Home / 90,828.45-136,323.68-53,341.65

Finding the Fourth Proportional to 90,828.45, 136,323.68 and 53,341.65

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Solution

The fourth proportional to 90,828.45, 136,323.68 and 53,341.65 is: 80,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.45 : 136,323.68 = 53,341.65 : x
  2. Step 2: Convert to fraction form
    90,828.45/136,323.68 = 53,341.65/x
  3. Step 3: Cross multiply
    90,828.45x = 136,323.68 × 53,341.65
  4. Step 4: Simplify right side
    90,828.45x = 7,271,729,758.56
  5. Step 5: Solve for x
    x = 7,271,729,758.56/90,828.45
  6. Step 6: Final answer
    x = 80,060.04

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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.