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Finding the Fourth Proportional to 57,927.60, 86,891.40 and 43,930.80

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Solution

The fourth proportional to 57,927.60, 86,891.40 and 43,930.80 is: 65,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927.60 : 86,891.40 = 43,930.80 : x
  2. Step 2: Convert to fraction form
    57,927.60/86,891.40 = 43,930.80/x
  3. Step 3: Cross multiply
    57,927.60x = 86,891.40 × 43,930.80
  4. Step 4: Simplify right side
    57,927.60x = 3,817,208,715.12
  5. Step 5: Solve for x
    x = 3,817,208,715.12/57,927.60
  6. Step 6: Final answer
    x = 65,896.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.