Home / 50,813.68-70,128.30-28,154.56

Finding the Fourth Proportional to 50,813.68, 70,128.30 and 28,154.56

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Solution

The fourth proportional to 50,813.68, 70,128.30 and 28,154.56 is: 38,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,813.68 : 70,128.30 = 28,154.56 : x
  2. Step 2: Convert to fraction form
    50,813.68/70,128.30 = 28,154.56/x
  3. Step 3: Cross multiply
    50,813.68x = 70,128.30 × 28,154.56
  4. Step 4: Simplify right side
    50,813.68x = 1,974,431,430.05
  5. Step 5: Solve for x
    x = 1,974,431,430.05/50,813.68
  6. Step 6: Final answer
    x = 38,856.30

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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.