Home / 78,004.93-117,015.58-25,418.49

Finding the Fourth Proportional to 78,004.93, 117,015.58 and 25,418.49

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Solution

The fourth proportional to 78,004.93, 117,015.58 and 25,418.49 is: 38,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,004.93 : 117,015.58 = 25,418.49 : x
  2. Step 2: Convert to fraction form
    78,004.93/117,015.58 = 25,418.49/x
  3. Step 3: Cross multiply
    78,004.93x = 117,015.58 × 25,418.49
  4. Step 4: Simplify right side
    78,004.93x = 2,974,359,222.98
  5. Step 5: Solve for x
    x = 2,974,359,222.98/78,004.93
  6. Step 6: Final answer
    x = 38,130.40

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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.