Home / 55,140.93-76,111.80-31,283.46

Finding the Fourth Proportional to 55,140.93, 76,111.80 and 31,283.46

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Solution

The fourth proportional to 55,140.93, 76,111.80 and 31,283.46 is: 43,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.93 : 76,111.80 = 31,283.46 : x
  2. Step 2: Convert to fraction form
    55,140.93/76,111.80 = 31,283.46/x
  3. Step 3: Cross multiply
    55,140.93x = 76,111.80 × 31,283.46
  4. Step 4: Simplify right side
    55,140.93x = 2,381,040,450.83
  5. Step 5: Solve for x
    x = 2,381,040,450.83/55,140.93
  6. Step 6: Final answer
    x = 43,181.00

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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.