Home / 50,776.31-70,073.49-28,115.30

Finding the Fourth Proportional to 50,776.31, 70,073.49 and 28,115.30

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Solution

The fourth proportional to 50,776.31, 70,073.49 and 28,115.30 is: 38,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,776.31 : 70,073.49 = 28,115.30 : x
  2. Step 2: Convert to fraction form
    50,776.31/70,073.49 = 28,115.30/x
  3. Step 3: Cross multiply
    50,776.31x = 70,073.49 × 28,115.30
  4. Step 4: Simplify right side
    50,776.31x = 1,970,137,193.40
  5. Step 5: Solve for x
    x = 1,970,137,193.40/50,776.31
  6. Step 6: Final answer
    x = 38,800.32

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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.