Home / 53,999.10-81,035.10-30,306.60

Finding the Fourth Proportional to 53,999.10, 81,035.10 and 30,306.60

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Solution

The fourth proportional to 53,999.10, 81,035.10 and 30,306.60 is: 45,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,999.10 : 81,035.10 = 30,306.60 : x
  2. Step 2: Convert to fraction form
    53,999.10/81,035.10 = 30,306.60/x
  3. Step 3: Cross multiply
    53,999.10x = 81,035.10 × 30,306.60
  4. Step 4: Simplify right side
    53,999.10x = 2,455,898,361.66
  5. Step 5: Solve for x
    x = 2,455,898,361.66/53,999.10
  6. Step 6: Final answer
    x = 45,480.36

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1.5x scale

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.