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Finding the Fourth Proportional to 42,450.68, 63,364.39 and 39,323

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Solution

The fourth proportional to 42,450.68, 63,364.39 and 39,323 is: 58,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,450.68 : 63,364.39 = 39,323 : x
  2. Step 2: Convert to fraction form
    42,450.68/63,364.39 = 39,323/x
  3. Step 3: Cross multiply
    42,450.68x = 63,364.39 × 39,323
  4. Step 4: Simplify right side
    42,450.68x = 2,491,677,907.97
  5. Step 5: Solve for x
    x = 2,491,677,907.97/42,450.68
  6. Step 6: Final answer
    x = 58,695.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.