Home / 55,047.54-75,970.29-31,178.46

Finding the Fourth Proportional to 55,047.54, 75,970.29 and 31,178.46

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Solution

The fourth proportional to 55,047.54, 75,970.29 and 31,178.46 is: 43,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,047.54 : 75,970.29 = 31,178.46 : x
  2. Step 2: Convert to fraction form
    55,047.54/75,970.29 = 31,178.46/x
  3. Step 3: Cross multiply
    55,047.54x = 75,970.29 × 31,178.46
  4. Step 4: Simplify right side
    55,047.54x = 2,368,636,647.95
  5. Step 5: Solve for x
    x = 2,368,636,647.95/55,047.54
  6. Step 6: Final answer
    x = 43,028.93

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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.