Home / 55,276.67-76,283.86-31,407.39

Finding the Fourth Proportional to 55,276.67, 76,283.86 and 31,407.39

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Solution

The fourth proportional to 55,276.67, 76,283.86 and 31,407.39 is: 43,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.67 : 76,283.86 = 31,407.39 : x
  2. Step 2: Convert to fraction form
    55,276.67/76,283.86 = 31,407.39/x
  3. Step 3: Cross multiply
    55,276.67x = 76,283.86 × 31,407.39
  4. Step 4: Simplify right side
    55,276.67x = 2,395,876,560.31
  5. Step 5: Solve for x
    x = 2,395,876,560.31/55,276.67
  6. Step 6: Final answer
    x = 43,343.36

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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.