Home / 55,162.11-76,126.65-31,296.45

Finding the Fourth Proportional to 55,162.11, 76,126.65 and 31,296.45

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Solution

The fourth proportional to 55,162.11, 76,126.65 and 31,296.45 is: 43,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,162.11 : 76,126.65 = 31,296.45 : x
  2. Step 2: Convert to fraction form
    55,162.11/76,126.65 = 31,296.45/x
  3. Step 3: Cross multiply
    55,162.11x = 76,126.65 × 31,296.45
  4. Step 4: Simplify right side
    55,162.11x = 2,382,493,895.39
  5. Step 5: Solve for x
    x = 2,382,493,895.39/55,162.11
  6. Step 6: Final answer
    x = 43,190.77

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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.