Home / 52,268.80-78,403.20-12,825.40

Finding the Fourth Proportional to 52,268.80, 78,403.20 and 12,825.40

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Solution

The fourth proportional to 52,268.80, 78,403.20 and 12,825.40 is: 19,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,268.80 : 78,403.20 = 12,825.40 : x
  2. Step 2: Convert to fraction form
    52,268.80/78,403.20 = 12,825.40/x
  3. Step 3: Cross multiply
    52,268.80x = 78,403.20 × 12,825.40
  4. Step 4: Simplify right side
    52,268.80x = 1,005,552,401.28
  5. Step 5: Solve for x
    x = 1,005,552,401.28/52,268.80
  6. Step 6: Final answer
    x = 19,238.10

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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.