Home / 52,135.40-78,203.10-49,860.20

Finding the Fourth Proportional to 52,135.40, 78,203.10 and 49,860.20

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Solution

The fourth proportional to 52,135.40, 78,203.10 and 49,860.20 is: 74,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.40 : 78,203.10 = 49,860.20 : x
  2. Step 2: Convert to fraction form
    52,135.40/78,203.10 = 49,860.20/x
  3. Step 3: Cross multiply
    52,135.40x = 78,203.10 × 49,860.20
  4. Step 4: Simplify right side
    52,135.40x = 3,899,222,206.62
  5. Step 5: Solve for x
    x = 3,899,222,206.62/52,135.40
  6. Step 6: Final answer
    x = 74,790.30

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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.