Home / 76,850.04-106,052.85-42,858.57

Finding the Fourth Proportional to 76,850.04, 106,052.85 and 42,858.57

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Solution

The fourth proportional to 76,850.04, 106,052.85 and 42,858.57 is: 59,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,850.04 : 106,052.85 = 42,858.57 : x
  2. Step 2: Convert to fraction form
    76,850.04/106,052.85 = 42,858.57/x
  3. Step 3: Cross multiply
    76,850.04x = 106,052.85 × 42,858.57
  4. Step 4: Simplify right side
    76,850.04x = 4,545,273,495.42
  5. Step 5: Solve for x
    x = 4,545,273,495.42/76,850.04
  6. Step 6: Final answer
    x = 59,144.71

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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.