Home / 50,836.80-76,298.40-40,987.20

Finding the Fourth Proportional to 50,836.80, 76,298.40 and 40,987.20

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Solution

The fourth proportional to 50,836.80, 76,298.40 and 40,987.20 is: 61,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,836.80 : 76,298.40 = 40,987.20 : x
  2. Step 2: Convert to fraction form
    50,836.80/76,298.40 = 40,987.20/x
  3. Step 3: Cross multiply
    50,836.80x = 76,298.40 × 40,987.20
  4. Step 4: Simplify right side
    50,836.80x = 3,127,257,780.48
  5. Step 5: Solve for x
    x = 3,127,257,780.48/50,836.80
  6. Step 6: Final answer
    x = 61,515.63

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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.