Home / 90,440.50-124,807.90-50,160.42

Finding the Fourth Proportional to 90,440.50, 124,807.90 and 50,160.42

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Solution

The fourth proportional to 90,440.50, 124,807.90 and 50,160.42 is: 69,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,440.50 : 124,807.90 = 50,160.42 : x
  2. Step 2: Convert to fraction form
    90,440.50/124,807.90 = 50,160.42/x
  3. Step 3: Cross multiply
    90,440.50x = 124,807.90 × 50,160.42
  4. Step 4: Simplify right side
    90,440.50x = 6,260,416,683.32
  5. Step 5: Solve for x
    x = 6,260,416,683.32/90,440.50
  6. Step 6: Final answer
    x = 69,221.39

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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.