Home / 55,111.19-76,055.36-31,237.65

Finding the Fourth Proportional to 55,111.19, 76,055.36 and 31,237.65

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Solution

The fourth proportional to 55,111.19, 76,055.36 and 31,237.65 is: 43,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.19 : 76,055.36 = 31,237.65 : x
  2. Step 2: Convert to fraction form
    55,111.19/76,055.36 = 31,237.65/x
  3. Step 3: Cross multiply
    55,111.19x = 76,055.36 × 31,237.65
  4. Step 4: Simplify right side
    55,111.19x = 2,375,790,560.12
  5. Step 5: Solve for x
    x = 2,375,790,560.12/55,111.19
  6. Step 6: Final answer
    x = 43,109.05

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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.