Home / 71,277.75-98,359.20-39,444.75

Finding the Fourth Proportional to 71,277.75, 98,359.20 and 39,444.75

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Solution

The fourth proportional to 71,277.75, 98,359.20 and 39,444.75 is: 54,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,277.75 : 98,359.20 = 39,444.75 : x
  2. Step 2: Convert to fraction form
    71,277.75/98,359.20 = 39,444.75/x
  3. Step 3: Cross multiply
    71,277.75x = 98,359.20 × 39,444.75
  4. Step 4: Simplify right side
    71,277.75x = 3,879,754,054.20
  5. Step 5: Solve for x
    x = 3,879,754,054.20/71,277.75
  6. Step 6: Final answer
    x = 54,431.49

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1.5x scale

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.