Home / 71,272.02-98,355.40-39,441.04

Finding the Fourth Proportional to 71,272.02, 98,355.40 and 39,441.04

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Solution

The fourth proportional to 71,272.02, 98,355.40 and 39,441.04 is: 54,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,272.02 : 98,355.40 = 39,441.04 : x
  2. Step 2: Convert to fraction form
    71,272.02/98,355.40 = 39,441.04/x
  3. Step 3: Cross multiply
    71,272.02x = 98,355.40 × 39,441.04
  4. Step 4: Simplify right side
    71,272.02x = 3,879,239,265.62
  5. Step 5: Solve for x
    x = 3,879,239,265.62/71,272.02
  6. Step 6: Final answer
    x = 54,428.64

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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.