Home / 78,004.02-117,015.76-25,399.38

Finding the Fourth Proportional to 78,004.02, 117,015.76 and 25,399.38

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Solution

The fourth proportional to 78,004.02, 117,015.76 and 25,399.38 is: 38,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,004.02 : 117,015.76 = 25,399.38 : x
  2. Step 2: Convert to fraction form
    78,004.02/117,015.76 = 25,399.38/x
  3. Step 3: Cross multiply
    78,004.02x = 117,015.76 × 25,399.38
  4. Step 4: Simplify right side
    78,004.02x = 2,972,127,754.23
  5. Step 5: Solve for x
    x = 2,972,127,754.23/78,004.02
  6. Step 6: Final answer
    x = 38,102.24

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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.