Home / 55,887.93-77,121.27-31,689.38

Finding the Fourth Proportional to 55,887.93, 77,121.27 and 31,689.38

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Solution

The fourth proportional to 55,887.93, 77,121.27 and 31,689.38 is: 43,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,887.93 : 77,121.27 = 31,689.38 : x
  2. Step 2: Convert to fraction form
    55,887.93/77,121.27 = 31,689.38/x
  3. Step 3: Cross multiply
    55,887.93x = 77,121.27 × 31,689.38
  4. Step 4: Simplify right side
    55,887.93x = 2,443,924,845.51
  5. Step 5: Solve for x
    x = 2,443,924,845.51/55,887.93
  6. Step 6: Final answer
    x = 43,729.03

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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.