Home / 68,508.04-102,705.90-26,379.40

Finding the Fourth Proportional to 68,508.04, 102,705.90 and 26,379.40

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Solution

The fourth proportional to 68,508.04, 102,705.90 and 26,379.40 is: 39,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,508.04 : 102,705.90 = 26,379.40 : x
  2. Step 2: Convert to fraction form
    68,508.04/102,705.90 = 26,379.40/x
  3. Step 3: Cross multiply
    68,508.04x = 102,705.90 × 26,379.40
  4. Step 4: Simplify right side
    68,508.04x = 2,709,320,018.46
  5. Step 5: Solve for x
    x = 2,709,320,018.46/68,508.04
  6. Step 6: Final answer
    x = 39,547.48

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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.