Home / 52,078.15-78,121.28-17,021.35

Finding the Fourth Proportional to 52,078.15, 78,121.28 and 17,021.35

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Solution

The fourth proportional to 52,078.15, 78,121.28 and 17,021.35 is: 25,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,078.15 : 78,121.28 = 17,021.35 : x
  2. Step 2: Convert to fraction form
    52,078.15/78,121.28 = 17,021.35/x
  3. Step 3: Cross multiply
    52,078.15x = 78,121.28 × 17,021.35
  4. Step 4: Simplify right side
    52,078.15x = 1,329,729,802.08
  5. Step 5: Solve for x
    x = 1,329,729,802.08/52,078.15
  6. Step 6: Final answer
    x = 25,533.35

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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.