Home / 77,729.17-116,580.71-21,574.98

Finding the Fourth Proportional to 77,729.17, 116,580.71 and 21,574.98

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Solution

The fourth proportional to 77,729.17, 116,580.71 and 21,574.98 is: 32,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.17 : 116,580.71 = 21,574.98 : x
  2. Step 2: Convert to fraction form
    77,729.17/116,580.71 = 21,574.98/x
  3. Step 3: Cross multiply
    77,729.17x = 116,580.71 × 21,574.98
  4. Step 4: Simplify right side
    77,729.17x = 2,515,226,378.76
  5. Step 5: Solve for x
    x = 2,515,226,378.76/77,729.17
  6. Step 6: Final answer
    x = 32,358.85

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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.