Home / 78,010.08-116,989.56-25,406.88

Finding the Fourth Proportional to 78,010.08, 116,989.56 and 25,406.88

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Solution

The fourth proportional to 78,010.08, 116,989.56 and 25,406.88 is: 38,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,010.08 : 116,989.56 = 25,406.88 : x
  2. Step 2: Convert to fraction form
    78,010.08/116,989.56 = 25,406.88/x
  3. Step 3: Cross multiply
    78,010.08x = 116,989.56 × 25,406.88
  4. Step 4: Simplify right side
    78,010.08x = 2,972,339,712.17
  5. Step 5: Solve for x
    x = 2,972,339,712.17/78,010.08
  6. Step 6: Final answer
    x = 38,102.00

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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.