Home / 77,576.37-116,362.23-21,419.91

Finding the Fourth Proportional to 77,576.37, 116,362.23 and 21,419.91

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Solution

The fourth proportional to 77,576.37, 116,362.23 and 21,419.91 is: 32,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.37 : 116,362.23 = 21,419.91 : x
  2. Step 2: Convert to fraction form
    77,576.37/116,362.23 = 21,419.91/x
  3. Step 3: Cross multiply
    77,576.37x = 116,362.23 × 21,419.91
  4. Step 4: Simplify right side
    77,576.37x = 2,492,468,494.00
  5. Step 5: Solve for x
    x = 2,492,468,494.00/77,576.37
  6. Step 6: Final answer
    x = 32,129.22

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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.