Home / 77,135.55-106,415.71-50,268.25

Finding the Fourth Proportional to 77,135.55, 106,415.71 and 50,268.25

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Solution

The fourth proportional to 77,135.55, 106,415.71 and 50,268.25 is: 69,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,135.55 : 106,415.71 = 50,268.25 : x
  2. Step 2: Convert to fraction form
    77,135.55/106,415.71 = 50,268.25/x
  3. Step 3: Cross multiply
    77,135.55x = 106,415.71 × 50,268.25
  4. Step 4: Simplify right side
    77,135.55x = 5,349,331,514.21
  5. Step 5: Solve for x
    x = 5,349,331,514.21/77,135.55
  6. Step 6: Final answer
    x = 69,349.76

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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.