Home / 55,154.67-76,071.73-38,187.31

Finding the Fourth Proportional to 55,154.67, 76,071.73 and 38,187.31

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Solution

The fourth proportional to 55,154.67, 76,071.73 and 38,187.31 is: 52,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,154.67 : 76,071.73 = 38,187.31 : x
  2. Step 2: Convert to fraction form
    55,154.67/76,071.73 = 38,187.31/x
  3. Step 3: Cross multiply
    55,154.67x = 76,071.73 × 38,187.31
  4. Step 4: Simplify right side
    55,154.67x = 2,904,974,735.75
  5. Step 5: Solve for x
    x = 2,904,974,735.75/55,154.67
  6. Step 6: Final answer
    x = 52,669.61

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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.