Home / 90,633.10-125,070.20-50,349.39

Finding the Fourth Proportional to 90,633.10, 125,070.20 and 50,349.39

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Solution

The fourth proportional to 90,633.10, 125,070.20 and 50,349.39 is: 69,480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,633.10 : 125,070.20 = 50,349.39 : x
  2. Step 2: Convert to fraction form
    90,633.10/125,070.20 = 50,349.39/x
  3. Step 3: Cross multiply
    90,633.10x = 125,070.20 × 50,349.39
  4. Step 4: Simplify right side
    90,633.10x = 6,297,208,463.98
  5. Step 5: Solve for x
    x = 6,297,208,463.98/90,633.10
  6. Step 6: Final answer
    x = 69,480.23

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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.