Home / 48,539.75-66,971.76-28,401.58

Finding the Fourth Proportional to 48,539.75, 66,971.76 and 28,401.58

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Solution

The fourth proportional to 48,539.75, 66,971.76 and 28,401.58 is: 39,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,539.75 : 66,971.76 = 28,401.58 : x
  2. Step 2: Convert to fraction form
    48,539.75/66,971.76 = 28,401.58/x
  3. Step 3: Cross multiply
    48,539.75x = 66,971.76 × 28,401.58
  4. Step 4: Simplify right side
    48,539.75x = 1,902,103,799.38
  5. Step 5: Solve for x
    x = 1,902,103,799.38/48,539.75
  6. Step 6: Final answer
    x = 39,186.52

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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.