Home / 90,855.86-136,306.56-53,447.22

Finding the Fourth Proportional to 90,855.86, 136,306.56 and 53,447.22

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Solution

The fourth proportional to 90,855.86, 136,306.56 and 53,447.22 is: 80,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,855.86 : 136,306.56 = 53,447.22 : x
  2. Step 2: Convert to fraction form
    90,855.86/136,306.56 = 53,447.22/x
  3. Step 3: Cross multiply
    90,855.86x = 136,306.56 × 53,447.22
  4. Step 4: Simplify right side
    90,855.86x = 7,285,206,699.76
  5. Step 5: Solve for x
    x = 7,285,206,699.76/90,855.86
  6. Step 6: Final answer
    x = 80,184.23

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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.