Home / 52,121.07-78,289.92-42,137.10

Finding the Fourth Proportional to 52,121.07, 78,289.92 and 42,137.10

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Solution

The fourth proportional to 52,121.07, 78,289.92 and 42,137.10 is: 63,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,121.07 : 78,289.92 = 42,137.10 : x
  2. Step 2: Convert to fraction form
    52,121.07/78,289.92 = 42,137.10/x
  3. Step 3: Cross multiply
    52,121.07x = 78,289.92 × 42,137.10
  4. Step 4: Simplify right side
    52,121.07x = 3,298,910,188.03
  5. Step 5: Solve for x
    x = 3,298,910,188.03/52,121.07
  6. Step 6: Final answer
    x = 63,293.22

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1.5x scale

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.