Home / 90,100.08-124,342.86-51,865.44

Finding the Fourth Proportional to 90,100.08, 124,342.86 and 51,865.44

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Solution

The fourth proportional to 90,100.08, 124,342.86 and 51,865.44 is: 71,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.08 : 124,342.86 = 51,865.44 : x
  2. Step 2: Convert to fraction form
    90,100.08/124,342.86 = 51,865.44/x
  3. Step 3: Cross multiply
    90,100.08x = 124,342.86 × 51,865.44
  4. Step 4: Simplify right side
    90,100.08x = 6,449,097,144.76
  5. Step 5: Solve for x
    x = 6,449,097,144.76/90,100.08
  6. Step 6: Final answer
    x = 71,577.04

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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.