Home / 105,695.52-145,859.78-57,947.85

Finding the Fourth Proportional to 105,695.52, 145,859.78 and 57,947.85

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Solution

The fourth proportional to 105,695.52, 145,859.78 and 57,947.85 is: 79,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,695.52 : 145,859.78 = 57,947.85 : x
  2. Step 2: Convert to fraction form
    105,695.52/145,859.78 = 57,947.85/x
  3. Step 3: Cross multiply
    105,695.52x = 145,859.78 × 57,947.85
  4. Step 4: Simplify right side
    105,695.52x = 8,452,260,362.73
  5. Step 5: Solve for x
    x = 8,452,260,362.73/105,695.52
  6. Step 6: Final answer
    x = 79,968.01

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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.