Home / 50,815.28-70,118.52-28,459.28

Finding the Fourth Proportional to 50,815.28, 70,118.52 and 28,459.28

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Solution

The fourth proportional to 50,815.28, 70,118.52 and 28,459.28 is: 39,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,815.28 : 70,118.52 = 28,459.28 : x
  2. Step 2: Convert to fraction form
    50,815.28/70,118.52 = 28,459.28/x
  3. Step 3: Cross multiply
    50,815.28x = 70,118.52 × 28,459.28
  4. Step 4: Simplify right side
    50,815.28x = 1,995,522,593.87
  5. Step 5: Solve for x
    x = 1,995,522,593.87/50,815.28
  6. Step 6: Final answer
    x = 39,270.13

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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.