Home / 71,277.79-98,366.44-39,446.70

Finding the Fourth Proportional to 71,277.79, 98,366.44 and 39,446.70

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Solution

The fourth proportional to 71,277.79, 98,366.44 and 39,446.70 is: 54,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,277.79 : 98,366.44 = 39,446.70 : x
  2. Step 2: Convert to fraction form
    71,277.79/98,366.44 = 39,446.70/x
  3. Step 3: Cross multiply
    71,277.79x = 98,366.44 × 39,446.70
  4. Step 4: Simplify right side
    71,277.79x = 3,880,231,448.75
  5. Step 5: Solve for x
    x = 3,880,231,448.75/71,277.79
  6. Step 6: Final answer
    x = 54,438.16

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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.