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Finding the Fourth Proportional to 71,462.33, 107,158.87 and 21,533.12

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Solution

The fourth proportional to 71,462.33, 107,158.87 and 21,533.12 is: 32,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,462.33 : 107,158.87 = 21,533.12 : x
  2. Step 2: Convert to fraction form
    71,462.33/107,158.87 = 21,533.12/x
  3. Step 3: Cross multiply
    71,462.33x = 107,158.87 × 21,533.12
  4. Step 4: Simplify right side
    71,462.33x = 2,307,464,806.77
  5. Step 5: Solve for x
    x = 2,307,464,806.77/71,462.33
  6. Step 6: Final answer
    x = 32,289.25

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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.