Home / 52,115.99-71,919.36-28,242.45

Finding the Fourth Proportional to 52,115.99, 71,919.36 and 28,242.45

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Solution

The fourth proportional to 52,115.99, 71,919.36 and 28,242.45 is: 38,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,115.99 : 71,919.36 = 28,242.45 : x
  2. Step 2: Convert to fraction form
    52,115.99/71,919.36 = 28,242.45/x
  3. Step 3: Cross multiply
    52,115.99x = 71,919.36 × 28,242.45
  4. Step 4: Simplify right side
    52,115.99x = 2,031,178,928.83
  5. Step 5: Solve for x
    x = 2,031,178,928.83/52,115.99
  6. Step 6: Final answer
    x = 38,974.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.