Home / 55,220.88-76,205.70-30,070.38

Finding the Fourth Proportional to 55,220.88, 76,205.70 and 30,070.38

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Solution

The fourth proportional to 55,220.88, 76,205.70 and 30,070.38 is: 41,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,220.88 : 76,205.70 = 30,070.38 : x
  2. Step 2: Convert to fraction form
    55,220.88/76,205.70 = 30,070.38/x
  3. Step 3: Cross multiply
    55,220.88x = 76,205.70 × 30,070.38
  4. Step 4: Simplify right side
    55,220.88x = 2,291,534,357.17
  5. Step 5: Solve for x
    x = 2,291,534,357.17/55,220.88
  6. Step 6: Final answer
    x = 41,497.61

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1.5x scale

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.