Home / 78,160.65-107,863.71-47,962.66

Finding the Fourth Proportional to 78,160.65, 107,863.71 and 47,962.66

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Solution

The fourth proportional to 78,160.65, 107,863.71 and 47,962.66 is: 66,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,160.65 : 107,863.71 = 47,962.66 : x
  2. Step 2: Convert to fraction form
    78,160.65/107,863.71 = 47,962.66/x
  3. Step 3: Cross multiply
    78,160.65x = 107,863.71 × 47,962.66
  4. Step 4: Simplify right side
    78,160.65x = 5,173,429,669.94
  5. Step 5: Solve for x
    x = 5,173,429,669.94/78,160.65
  6. Step 6: Final answer
    x = 66,189.70

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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.