Home / 90,385.23-124,739.09-50,111.63

Finding the Fourth Proportional to 90,385.23, 124,739.09 and 50,111.63

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Solution

The fourth proportional to 90,385.23, 124,739.09 and 50,111.63 is: 69,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,385.23 : 124,739.09 = 50,111.63 : x
  2. Step 2: Convert to fraction form
    90,385.23/124,739.09 = 50,111.63/x
  3. Step 3: Cross multiply
    90,385.23x = 124,739.09 × 50,111.63
  4. Step 4: Simplify right side
    90,385.23x = 6,250,879,124.62
  5. Step 5: Solve for x
    x = 6,250,879,124.62/90,385.23
  6. Step 6: Final answer
    x = 69,158.19

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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.