Home / 55,159.11-76,122.51-31,293.45

Finding the Fourth Proportional to 55,159.11, 76,122.51 and 31,293.45

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Solution

The fourth proportional to 55,159.11, 76,122.51 and 31,293.45 is: 43,186.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.11 : 76,122.51 = 31,293.45 : x
  2. Step 2: Convert to fraction form
    55,159.11/76,122.51 = 31,293.45/x
  3. Step 3: Cross multiply
    55,159.11x = 76,122.51 × 31,293.45
  4. Step 4: Simplify right side
    55,159.11x = 2,382,135,960.56
  5. Step 5: Solve for x
    x = 2,382,135,960.56/55,159.11
  6. Step 6: Final answer
    x = 43,186.63

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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.