Home / 71,272.98-98,355.33-39,441.30

Finding the Fourth Proportional to 71,272.98, 98,355.33 and 39,441.30

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Solution

The fourth proportional to 71,272.98, 98,355.33 and 39,441.30 is: 54,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,272.98 : 98,355.33 = 39,441.30 : x
  2. Step 2: Convert to fraction form
    71,272.98/98,355.33 = 39,441.30/x
  3. Step 3: Cross multiply
    71,272.98x = 98,355.33 × 39,441.30
  4. Step 4: Simplify right side
    71,272.98x = 3,879,262,077.13
  5. Step 5: Solve for x
    x = 3,879,262,077.13/71,272.98
  6. Step 6: Final answer
    x = 54,428.23

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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.