Home / 61,378.74-91,947.87-31,816.08

Finding the Fourth Proportional to 61,378.74, 91,947.87 and 31,816.08

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Solution

The fourth proportional to 61,378.74, 91,947.87 and 31,816.08 is: 47,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,378.74 : 91,947.87 = 31,816.08 : x
  2. Step 2: Convert to fraction form
    61,378.74/91,947.87 = 31,816.08/x
  3. Step 3: Cross multiply
    61,378.74x = 91,947.87 × 31,816.08
  4. Step 4: Simplify right side
    61,378.74x = 2,925,420,787.75
  5. Step 5: Solve for x
    x = 2,925,420,787.75/61,378.74
  6. Step 6: Final answer
    x = 47,661.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.