Home / 55,353.75-76,387.77-31,480.40

Finding the Fourth Proportional to 55,353.75, 76,387.77 and 31,480.40

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Solution

The fourth proportional to 55,353.75, 76,387.77 and 31,480.40 is: 43,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,353.75 : 76,387.77 = 31,480.40 : x
  2. Step 2: Convert to fraction form
    55,353.75/76,387.77 = 31,480.40/x
  3. Step 3: Cross multiply
    55,353.75x = 76,387.77 × 31,480.40
  4. Step 4: Simplify right side
    55,353.75x = 2,404,717,172.77
  5. Step 5: Solve for x
    x = 2,404,717,172.77/55,353.75
  6. Step 6: Final answer
    x = 43,442.71

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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.