Home / 68,501.24-102,758.70-18,582.16

Finding the Fourth Proportional to 68,501.24, 102,758.70 and 18,582.16

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Solution

The fourth proportional to 68,501.24, 102,758.70 and 18,582.16 is: 27,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.24 : 102,758.70 = 18,582.16 : x
  2. Step 2: Convert to fraction form
    68,501.24/102,758.70 = 18,582.16/x
  3. Step 3: Cross multiply
    68,501.24x = 102,758.70 × 18,582.16
  4. Step 4: Simplify right side
    68,501.24x = 1,909,478,604.79
  5. Step 5: Solve for x
    x = 1,909,478,604.79/68,501.24
  6. Step 6: Final answer
    x = 27,875.10

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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.