Home / 54,901.60-75,765.63-31,029.78

Finding the Fourth Proportional to 54,901.60, 75,765.63 and 31,029.78

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Solution

The fourth proportional to 54,901.60, 75,765.63 and 31,029.78 is: 42,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,901.60 : 75,765.63 = 31,029.78 : x
  2. Step 2: Convert to fraction form
    54,901.60/75,765.63 = 31,029.78/x
  3. Step 3: Cross multiply
    54,901.60x = 75,765.63 × 31,029.78
  4. Step 4: Simplify right side
    54,901.60x = 2,350,991,056.40
  5. Step 5: Solve for x
    x = 2,350,991,056.40/54,901.60
  6. Step 6: Final answer
    x = 42,821.91

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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.