Home / 50,838.80-76,301.40-40,989.20

Finding the Fourth Proportional to 50,838.80, 76,301.40 and 40,989.20

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Solution

The fourth proportional to 50,838.80, 76,301.40 and 40,989.20 is: 61,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,838.80 : 76,301.40 = 40,989.20 : x
  2. Step 2: Convert to fraction form
    50,838.80/76,301.40 = 40,989.20/x
  3. Step 3: Cross multiply
    50,838.80x = 76,301.40 × 40,989.20
  4. Step 4: Simplify right side
    50,838.80x = 3,127,533,344.88
  5. Step 5: Solve for x
    x = 3,127,533,344.88/50,838.80
  6. Step 6: Final answer
    x = 61,518.63

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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.