Home / 50,778.81-70,073.90-28,117.31

Finding the Fourth Proportional to 50,778.81, 70,073.90 and 28,117.31

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Solution

The fourth proportional to 50,778.81, 70,073.90 and 28,117.31 is: 38,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,778.81 : 70,073.90 = 28,117.31 : x
  2. Step 2: Convert to fraction form
    50,778.81/70,073.90 = 28,117.31/x
  3. Step 3: Cross multiply
    50,778.81x = 70,073.90 × 28,117.31
  4. Step 4: Simplify right side
    50,778.81x = 1,970,289,569.21
  5. Step 5: Solve for x
    x = 1,970,289,569.21/50,778.81
  6. Step 6: Final answer
    x = 38,801.41

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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.