Home / 90,424.08-124,783.11-50,137.47

Finding the Fourth Proportional to 90,424.08, 124,783.11 and 50,137.47

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Solution

The fourth proportional to 90,424.08, 124,783.11 and 50,137.47 is: 69,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,424.08 : 124,783.11 = 50,137.47 : x
  2. Step 2: Convert to fraction form
    90,424.08/124,783.11 = 50,137.47/x
  3. Step 3: Cross multiply
    90,424.08x = 124,783.11 × 50,137.47
  4. Step 4: Simplify right side
    90,424.08x = 6,256,309,434.13
  5. Step 5: Solve for x
    x = 6,256,309,434.13/90,424.08
  6. Step 6: Final answer
    x = 69,188.53

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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.