Home / 53,101.85-79,652.68-15,688.20

Finding the Fourth Proportional to 53,101.85, 79,652.68 and 15,688.20

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Solution

The fourth proportional to 53,101.85, 79,652.68 and 15,688.20 is: 23,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,101.85 : 79,652.68 = 15,688.20 : x
  2. Step 2: Convert to fraction form
    53,101.85/79,652.68 = 15,688.20/x
  3. Step 3: Cross multiply
    53,101.85x = 79,652.68 × 15,688.20
  4. Step 4: Simplify right side
    53,101.85x = 1,249,607,493.44
  5. Step 5: Solve for x
    x = 1,249,607,493.44/53,101.85
  6. Step 6: Final answer
    x = 23,532.28

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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.