Home / 71,261.55-98,336.83-39,428.55

Finding the Fourth Proportional to 71,261.55, 98,336.83 and 39,428.55

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Solution

The fourth proportional to 71,261.55, 98,336.83 and 39,428.55 is: 54,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,261.55 : 98,336.83 = 39,428.55 : x
  2. Step 2: Convert to fraction form
    71,261.55/98,336.83 = 39,428.55/x
  3. Step 3: Cross multiply
    71,261.55x = 98,336.83 × 39,428.55
  4. Step 4: Simplify right side
    71,261.55x = 3,877,278,618.50
  5. Step 5: Solve for x
    x = 3,877,278,618.50/71,261.55
  6. Step 6: Final answer
    x = 54,409.13

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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.