Home / 76,921.36-106,151.24-42,929.47

Finding the Fourth Proportional to 76,921.36, 106,151.24 and 42,929.47

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Solution

The fourth proportional to 76,921.36, 106,151.24 and 42,929.47 is: 59,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,921.36 : 106,151.24 = 42,929.47 : x
  2. Step 2: Convert to fraction form
    76,921.36/106,151.24 = 42,929.47/x
  3. Step 3: Cross multiply
    76,921.36x = 106,151.24 × 42,929.47
  4. Step 4: Simplify right side
    76,921.36x = 4,557,016,713.06
  5. Step 5: Solve for x
    x = 4,557,016,713.06/76,921.36
  6. Step 6: Final answer
    x = 59,242.54

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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.