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Finding the Fourth Proportional to 57,442.40, 86,163.60 and 51,100.10

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Solution

The fourth proportional to 57,442.40, 86,163.60 and 51,100.10 is: 76,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,442.40 : 86,163.60 = 51,100.10 : x
  2. Step 2: Convert to fraction form
    57,442.40/86,163.60 = 51,100.10/x
  3. Step 3: Cross multiply
    57,442.40x = 86,163.60 × 51,100.10
  4. Step 4: Simplify right side
    57,442.40x = 4,402,968,576.36
  5. Step 5: Solve for x
    x = 4,402,968,576.36/57,442.40
  6. Step 6: Final answer
    x = 76,650.15

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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.