Home / 76,428.70-114,643.05-23,838.10

Finding the Fourth Proportional to 76,428.70, 114,643.05 and 23,838.10

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Solution

The fourth proportional to 76,428.70, 114,643.05 and 23,838.10 is: 35,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,428.70 : 114,643.05 = 23,838.10 : x
  2. Step 2: Convert to fraction form
    76,428.70/114,643.05 = 23,838.10/x
  3. Step 3: Cross multiply
    76,428.70x = 114,643.05 × 23,838.10
  4. Step 4: Simplify right side
    76,428.70x = 2,732,872,490.21
  5. Step 5: Solve for x
    x = 2,732,872,490.21/76,428.70
  6. Step 6: Final answer
    x = 35,757.15

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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.