Home / 71,185.39-98,237.90-39,356.35

Finding the Fourth Proportional to 71,185.39, 98,237.90 and 39,356.35

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Solution

The fourth proportional to 71,185.39, 98,237.90 and 39,356.35 is: 54,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,185.39 : 98,237.90 = 39,356.35 : x
  2. Step 2: Convert to fraction form
    71,185.39/98,237.90 = 39,356.35/x
  3. Step 3: Cross multiply
    71,185.39x = 98,237.90 × 39,356.35
  4. Step 4: Simplify right side
    71,185.39x = 3,866,284,487.69
  5. Step 5: Solve for x
    x = 3,866,284,487.69/71,185.39
  6. Step 6: Final answer
    x = 54,312.90

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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.