Home / 50,829.40-70,142.52-28,168.72

Finding the Fourth Proportional to 50,829.40, 70,142.52 and 28,168.72

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Solution

The fourth proportional to 50,829.40, 70,142.52 and 28,168.72 is: 38,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,829.40 : 70,142.52 = 28,168.72 : x
  2. Step 2: Convert to fraction form
    50,829.40/70,142.52 = 28,168.72/x
  3. Step 3: Cross multiply
    50,829.40x = 70,142.52 × 28,168.72
  4. Step 4: Simplify right side
    50,829.40x = 1,975,825,005.97
  5. Step 5: Solve for x
    x = 1,975,825,005.97/50,829.40
  6. Step 6: Final answer
    x = 38,871.70

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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.