Home / 54,975.02-75,865.08-31,101.50

Finding the Fourth Proportional to 54,975.02, 75,865.08 and 31,101.50

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Solution

The fourth proportional to 54,975.02, 75,865.08 and 31,101.50 is: 42,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,975.02 : 75,865.08 = 31,101.50 : x
  2. Step 2: Convert to fraction form
    54,975.02/75,865.08 = 31,101.50/x
  3. Step 3: Cross multiply
    54,975.02x = 75,865.08 × 31,101.50
  4. Step 4: Simplify right side
    54,975.02x = 2,359,517,785.62
  5. Step 5: Solve for x
    x = 2,359,517,785.62/54,975.02
  6. Step 6: Final answer
    x = 42,919.82

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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.