Home / 64,780.33-96,951-39,836.17

Finding the Fourth Proportional to 64,780.33, 96,951 and 39,836.17

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Solution

The fourth proportional to 64,780.33, 96,951 and 39,836.17 is: 59,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.33 : 96,951 = 39,836.17 : x
  2. Step 2: Convert to fraction form
    64,780.33/96,951 = 39,836.17/x
  3. Step 3: Cross multiply
    64,780.33x = 96,951 × 39,836.17
  4. Step 4: Simplify right side
    64,780.33x = 3,862,156,517.67
  5. Step 5: Solve for x
    x = 3,862,156,517.67/64,780.33
  6. Step 6: Final answer
    x = 59,619.28

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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.