Home / 77,764.68-116,647.26-21,607.86

Finding the Fourth Proportional to 77,764.68, 116,647.26 and 21,607.86

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Solution

The fourth proportional to 77,764.68, 116,647.26 and 21,607.86 is: 32,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.68 : 116,647.26 = 21,607.86 : x
  2. Step 2: Convert to fraction form
    77,764.68/116,647.26 = 21,607.86/x
  3. Step 3: Cross multiply
    77,764.68x = 116,647.26 × 21,607.86
  4. Step 4: Simplify right side
    77,764.68x = 2,520,497,663.46
  5. Step 5: Solve for x
    x = 2,520,497,663.46/77,764.68
  6. Step 6: Final answer
    x = 32,411.86

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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.