Home / 86,068.38-118,771.78-47,827.80

Finding the Fourth Proportional to 86,068.38, 118,771.78 and 47,827.80

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Solution

The fourth proportional to 86,068.38, 118,771.78 and 47,827.80 is: 66,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,068.38 : 118,771.78 = 47,827.80 : x
  2. Step 2: Convert to fraction form
    86,068.38/118,771.78 = 47,827.80/x
  3. Step 3: Cross multiply
    86,068.38x = 118,771.78 × 47,827.80
  4. Step 4: Simplify right side
    86,068.38x = 5,680,592,939.48
  5. Step 5: Solve for x
    x = 5,680,592,939.48/86,068.38
  6. Step 6: Final answer
    x = 66,000.93

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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.