Home / 53,053.20-79,627.30-47,421.91

Finding the Fourth Proportional to 53,053.20, 79,627.30 and 47,421.91

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Solution

The fourth proportional to 53,053.20, 79,627.30 and 47,421.91 is: 71,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,053.20 : 79,627.30 = 47,421.91 : x
  2. Step 2: Convert to fraction form
    53,053.20/79,627.30 = 47,421.91/x
  3. Step 3: Cross multiply
    53,053.20x = 79,627.30 × 47,421.91
  4. Step 4: Simplify right side
    53,053.20x = 3,776,078,453.97
  5. Step 5: Solve for x
    x = 3,776,078,453.97/53,053.20
  6. Step 6: Final answer
    x = 71,175.32

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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.