Home / 55,520.80-76,618.08-30,370

Finding the Fourth Proportional to 55,520.80, 76,618.08 and 30,370

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Solution

The fourth proportional to 55,520.80, 76,618.08 and 30,370 is: 41,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,520.80 : 76,618.08 = 30,370 : x
  2. Step 2: Convert to fraction form
    55,520.80/76,618.08 = 30,370/x
  3. Step 3: Cross multiply
    55,520.80x = 76,618.08 × 30,370
  4. Step 4: Simplify right side
    55,520.80x = 2,326,891,089.60
  5. Step 5: Solve for x
    x = 2,326,891,089.60/55,520.80
  6. Step 6: Final answer
    x = 41,910.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.