Home / 61,639.68-85,064.94-34,780.62

Finding the Fourth Proportional to 61,639.68, 85,064.94 and 34,780.62

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Solution

The fourth proportional to 61,639.68, 85,064.94 and 34,780.62 is: 47,998.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,639.68 : 85,064.94 = 34,780.62 : x
  2. Step 2: Convert to fraction form
    61,639.68/85,064.94 = 34,780.62/x
  3. Step 3: Cross multiply
    61,639.68x = 85,064.94 × 34,780.62
  4. Step 4: Simplify right side
    61,639.68x = 2,958,611,353.46
  5. Step 5: Solve for x
    x = 2,958,611,353.46/61,639.68
  6. Step 6: Final answer
    x = 47,998.49

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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.