Home / 76,618.08-114,898.68-26,685.36

Finding the Fourth Proportional to 76,618.08, 114,898.68 and 26,685.36

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Solution

The fourth proportional to 76,618.08, 114,898.68 and 26,685.36 is: 40,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,618.08 : 114,898.68 = 26,685.36 : x
  2. Step 2: Convert to fraction form
    76,618.08/114,898.68 = 26,685.36/x
  3. Step 3: Cross multiply
    76,618.08x = 114,898.68 × 26,685.36
  4. Step 4: Simplify right side
    76,618.08x = 3,066,112,639.32
  5. Step 5: Solve for x
    x = 3,066,112,639.32/76,618.08
  6. Step 6: Final answer
    x = 40,018.13

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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.