Home / 55,891.13-77,129.39-31,696.67

Finding the Fourth Proportional to 55,891.13, 77,129.39 and 31,696.67

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Solution

The fourth proportional to 55,891.13, 77,129.39 and 31,696.67 is: 43,741.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,891.13 : 77,129.39 = 31,696.67 : x
  2. Step 2: Convert to fraction form
    55,891.13/77,129.39 = 31,696.67/x
  3. Step 3: Cross multiply
    55,891.13x = 77,129.39 × 31,696.67
  4. Step 4: Simplify right side
    55,891.13x = 2,444,744,278.00
  5. Step 5: Solve for x
    x = 2,444,744,278.00/55,891.13
  6. Step 6: Final answer
    x = 43,741.19

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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.