Home / 71,156.25-98,187.12-39,320.82

Finding the Fourth Proportional to 71,156.25, 98,187.12 and 39,320.82

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Solution

The fourth proportional to 71,156.25, 98,187.12 and 39,320.82 is: 54,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,156.25 : 98,187.12 = 39,320.82 : x
  2. Step 2: Convert to fraction form
    71,156.25/98,187.12 = 39,320.82/x
  3. Step 3: Cross multiply
    71,156.25x = 98,187.12 × 39,320.82
  4. Step 4: Simplify right side
    71,156.25x = 3,860,798,071.84
  5. Step 5: Solve for x
    x = 3,860,798,071.84/71,156.25
  6. Step 6: Final answer
    x = 54,258.03

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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.