Home / 90,784.58-125,287.38-50,499.14

Finding the Fourth Proportional to 90,784.58, 125,287.38 and 50,499.14

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Solution

The fourth proportional to 90,784.58, 125,287.38 and 50,499.14 is: 69,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,784.58 : 125,287.38 = 50,499.14 : x
  2. Step 2: Convert to fraction form
    90,784.58/125,287.38 = 50,499.14/x
  3. Step 3: Cross multiply
    90,784.58x = 125,287.38 × 50,499.14
  4. Step 4: Simplify right side
    90,784.58x = 6,326,904,316.42
  5. Step 5: Solve for x
    x = 6,326,904,316.42/90,784.58
  6. Step 6: Final answer
    x = 69,691.40

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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.