Home / 57,216.40-78,930.58-49,652.12

Finding the Fourth Proportional to 57,216.40, 78,930.58 and 49,652.12

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Solution

The fourth proportional to 57,216.40, 78,930.58 and 49,652.12 is: 68,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.40 : 78,930.58 = 49,652.12 : x
  2. Step 2: Convert to fraction form
    57,216.40/78,930.58 = 49,652.12/x
  3. Step 3: Cross multiply
    57,216.40x = 78,930.58 × 49,652.12
  4. Step 4: Simplify right side
    57,216.40x = 3,919,070,629.83
  5. Step 5: Solve for x
    x = 3,919,070,629.83/57,216.40
  6. Step 6: Final answer
    x = 68,495.58

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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.