Home / 77,575.85-116,370.46-21,415.97

Finding the Fourth Proportional to 77,575.85, 116,370.46 and 21,415.97

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Solution

The fourth proportional to 77,575.85, 116,370.46 and 21,415.97 is: 32,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,575.85 : 116,370.46 = 21,415.97 : x
  2. Step 2: Convert to fraction form
    77,575.85/116,370.46 = 21,415.97/x
  3. Step 3: Cross multiply
    77,575.85x = 116,370.46 × 21,415.97
  4. Step 4: Simplify right side
    77,575.85x = 2,492,186,280.25
  5. Step 5: Solve for x
    x = 2,492,186,280.25/77,575.85
  6. Step 6: Final answer
    x = 32,125.80

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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.