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Finding the Fourth Proportional to 64,205.70, 96,308.55 and 40,935.30

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Solution

The fourth proportional to 64,205.70, 96,308.55 and 40,935.30 is: 61,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,205.70 : 96,308.55 = 40,935.30 : x
  2. Step 2: Convert to fraction form
    64,205.70/96,308.55 = 40,935.30/x
  3. Step 3: Cross multiply
    64,205.70x = 96,308.55 × 40,935.30
  4. Step 4: Simplify right side
    64,205.70x = 3,942,419,386.82
  5. Step 5: Solve for x
    x = 3,942,419,386.82/64,205.70
  6. Step 6: Final answer
    x = 61,402.95

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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.