Home / 78,898.14-108,878.70-43,088.04

Finding the Fourth Proportional to 78,898.14, 108,878.70 and 43,088.04

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Solution

The fourth proportional to 78,898.14, 108,878.70 and 43,088.04 is: 59,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,898.14 : 108,878.70 = 43,088.04 : x
  2. Step 2: Convert to fraction form
    78,898.14/108,878.70 = 43,088.04/x
  3. Step 3: Cross multiply
    78,898.14x = 108,878.70 × 43,088.04
  4. Step 4: Simplify right side
    78,898.14x = 4,691,369,780.75
  5. Step 5: Solve for x
    x = 4,691,369,780.75/78,898.14
  6. Step 6: Final answer
    x = 59,461.09

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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.