Home / 58,408.27-87,616.65-20,972.90

Finding the Fourth Proportional to 58,408.27, 87,616.65 and 20,972.90

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Solution

The fourth proportional to 58,408.27, 87,616.65 and 20,972.90 is: 31,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,408.27 : 87,616.65 = 20,972.90 : x
  2. Step 2: Convert to fraction form
    58,408.27/87,616.65 = 20,972.90/x
  3. Step 3: Cross multiply
    58,408.27x = 87,616.65 × 20,972.90
  4. Step 4: Simplify right side
    58,408.27x = 1,837,575,238.79
  5. Step 5: Solve for x
    x = 1,837,575,238.79/58,408.27
  6. Step 6: Final answer
    x = 31,460.87

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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.