Home / 76,850.24-106,053.12-42,858.77

Finding the Fourth Proportional to 76,850.24, 106,053.12 and 42,858.77

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Solution

The fourth proportional to 76,850.24, 106,053.12 and 42,858.77 is: 59,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,850.24 : 106,053.12 = 42,858.77 : x
  2. Step 2: Convert to fraction form
    76,850.24/106,053.12 = 42,858.77/x
  3. Step 3: Cross multiply
    76,850.24x = 106,053.12 × 42,858.77
  4. Step 4: Simplify right side
    76,850.24x = 4,545,305,747.60
  5. Step 5: Solve for x
    x = 4,545,305,747.60/76,850.24
  6. Step 6: Final answer
    x = 59,144.98

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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.