Home / 90,506.85-124,899.99-50,221.39

Finding the Fourth Proportional to 90,506.85, 124,899.99 and 50,221.39

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Solution

The fourth proportional to 90,506.85, 124,899.99 and 50,221.39 is: 69,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,506.85 : 124,899.99 = 50,221.39 : x
  2. Step 2: Convert to fraction form
    90,506.85/124,899.99 = 50,221.39/x
  3. Step 3: Cross multiply
    90,506.85x = 124,899.99 × 50,221.39
  4. Step 4: Simplify right side
    90,506.85x = 6,272,651,108.79
  5. Step 5: Solve for x
    x = 6,272,651,108.79/90,506.85
  6. Step 6: Final answer
    x = 69,305.82

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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.