Home / 48,556.80-72,689.40-28,825.20

Finding the Fourth Proportional to 48,556.80, 72,689.40 and 28,825.20

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Solution

The fourth proportional to 48,556.80, 72,689.40 and 28,825.20 is: 43,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,556.80 : 72,689.40 = 28,825.20 : x
  2. Step 2: Convert to fraction form
    48,556.80/72,689.40 = 28,825.20/x
  3. Step 3: Cross multiply
    48,556.80x = 72,689.40 × 28,825.20
  4. Step 4: Simplify right side
    48,556.80x = 2,095,286,492.88
  5. Step 5: Solve for x
    x = 2,095,286,492.88/48,556.80
  6. Step 6: Final answer
    x = 43,151.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.