Home / 52,421.48-78,621.13-16,885.92

Finding the Fourth Proportional to 52,421.48, 78,621.13 and 16,885.92

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Solution

The fourth proportional to 52,421.48, 78,621.13 and 16,885.92 is: 25,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,421.48 : 78,621.13 = 16,885.92 : x
  2. Step 2: Convert to fraction form
    52,421.48/78,621.13 = 16,885.92/x
  3. Step 3: Cross multiply
    52,421.48x = 78,621.13 × 16,885.92
  4. Step 4: Simplify right side
    52,421.48x = 1,327,589,985.18
  5. Step 5: Solve for x
    x = 1,327,589,985.18/52,421.48
  6. Step 6: Final answer
    x = 25,325.31

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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.