Home / 52,007.79-78,014.93-20,838.99

Finding the Fourth Proportional to 52,007.79, 78,014.93 and 20,838.99

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Solution

The fourth proportional to 52,007.79, 78,014.93 and 20,838.99 is: 31,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,007.79 : 78,014.93 = 20,838.99 : x
  2. Step 2: Convert to fraction form
    52,007.79/78,014.93 = 20,838.99/x
  3. Step 3: Cross multiply
    52,007.79x = 78,014.93 × 20,838.99
  4. Step 4: Simplify right side
    52,007.79x = 1,625,752,241.93
  5. Step 5: Solve for x
    x = 1,625,752,241.93/52,007.79
  6. Step 6: Final answer
    x = 31,259.78

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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.