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Finding the Fourth Proportional to 71,277.71, 98,368.22 and 39,447.95

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Solution

The fourth proportional to 71,277.71, 98,368.22 and 39,447.95 is: 54,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,277.71 : 98,368.22 = 39,447.95 : x
  2. Step 2: Convert to fraction form
    71,277.71/98,368.22 = 39,447.95/x
  3. Step 3: Cross multiply
    71,277.71x = 98,368.22 × 39,447.95
  4. Step 4: Simplify right side
    71,277.71x = 3,880,424,230.93
  5. Step 5: Solve for x
    x = 3,880,424,230.93/71,277.71
  6. Step 6: Final answer
    x = 54,440.93

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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.