Home / 55,080.14-76,010.40-31,211.36

Finding the Fourth Proportional to 55,080.14, 76,010.40 and 31,211.36

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Solution

The fourth proportional to 55,080.14, 76,010.40 and 31,211.36 is: 43,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,080.14 : 76,010.40 = 31,211.36 : x
  2. Step 2: Convert to fraction form
    55,080.14/76,010.40 = 31,211.36/x
  3. Step 3: Cross multiply
    55,080.14x = 76,010.40 × 31,211.36
  4. Step 4: Simplify right side
    55,080.14x = 2,372,387,863.13
  5. Step 5: Solve for x
    x = 2,372,387,863.13/55,080.14
  6. Step 6: Final answer
    x = 43,071.57

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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.