Home / 68,098.61-93,979.11-56,749.10

Finding the Fourth Proportional to 68,098.61, 93,979.11 and 56,749.10

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Solution

The fourth proportional to 68,098.61, 93,979.11 and 56,749.10 is: 78,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,098.61 : 93,979.11 = 56,749.10 : x
  2. Step 2: Convert to fraction form
    68,098.61/93,979.11 = 56,749.10/x
  3. Step 3: Cross multiply
    68,098.61x = 93,979.11 × 56,749.10
  4. Step 4: Simplify right side
    68,098.61x = 5,333,229,441.41
  5. Step 5: Solve for x
    x = 5,333,229,441.41/68,098.61
  6. Step 6: Final answer
    x = 78,316.27

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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.