Home / 52,578.19-78,868.38-18,846.40

Finding the Fourth Proportional to 52,578.19, 78,868.38 and 18,846.40

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Solution

The fourth proportional to 52,578.19, 78,868.38 and 18,846.40 is: 28,269.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,578.19 : 78,868.38 = 18,846.40 : x
  2. Step 2: Convert to fraction form
    52,578.19/78,868.38 = 18,846.40/x
  3. Step 3: Cross multiply
    52,578.19x = 78,868.38 × 18,846.40
  4. Step 4: Simplify right side
    52,578.19x = 1,486,385,036.83
  5. Step 5: Solve for x
    x = 1,486,385,036.83/52,578.19
  6. Step 6: Final answer
    x = 28,269.99

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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.