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Finding the Fourth Proportional to 64,413, 88,889.94 and 39,277.08

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Solution

The fourth proportional to 64,413, 88,889.94 and 39,277.08 is: 54,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,413 : 88,889.94 = 39,277.08 : x
  2. Step 2: Convert to fraction form
    64,413/88,889.94 = 39,277.08/x
  3. Step 3: Cross multiply
    64,413x = 88,889.94 × 39,277.08
  4. Step 4: Simplify right side
    64,413x = 3,491,337,284.58
  5. Step 5: Solve for x
    x = 3,491,337,284.58/64,413
  6. Step 6: Final answer
    x = 54,202.37

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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.