Home / 52,130.22-78,167.20-28,127.37

Finding the Fourth Proportional to 52,130.22, 78,167.20 and 28,127.37

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Solution

The fourth proportional to 52,130.22, 78,167.20 and 28,127.37 is: 42,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,130.22 : 78,167.20 = 28,127.37 : x
  2. Step 2: Convert to fraction form
    52,130.22/78,167.20 = 28,127.37/x
  3. Step 3: Cross multiply
    52,130.22x = 78,167.20 × 28,127.37
  4. Step 4: Simplify right side
    52,130.22x = 2,198,638,031.81
  5. Step 5: Solve for x
    x = 2,198,638,031.81/52,130.22
  6. Step 6: Final answer
    x = 42,175.89

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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.