Home / 53,131.20-79,600.80-30,926.40

Finding the Fourth Proportional to 53,131.20, 79,600.80 and 30,926.40

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Solution

The fourth proportional to 53,131.20, 79,600.80 and 30,926.40 is: 46,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,131.20 : 79,600.80 = 30,926.40 : x
  2. Step 2: Convert to fraction form
    53,131.20/79,600.80 = 30,926.40/x
  3. Step 3: Cross multiply
    53,131.20x = 79,600.80 × 30,926.40
  4. Step 4: Simplify right side
    53,131.20x = 2,461,766,181.12
  5. Step 5: Solve for x
    x = 2,461,766,181.12/53,131.20
  6. Step 6: Final answer
    x = 46,333.72

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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.