Home / 68,275.08-102,412.44-18,355.17

Finding the Fourth Proportional to 68,275.08, 102,412.44 and 18,355.17

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Solution

The fourth proportional to 68,275.08, 102,412.44 and 18,355.17 is: 27,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,275.08 : 102,412.44 = 18,355.17 : x
  2. Step 2: Convert to fraction form
    68,275.08/102,412.44 = 18,355.17/x
  3. Step 3: Cross multiply
    68,275.08x = 102,412.44 × 18,355.17
  4. Step 4: Simplify right side
    68,275.08x = 1,879,798,130.36
  5. Step 5: Solve for x
    x = 1,879,798,130.36/68,275.08
  6. Step 6: Final answer
    x = 27,532.71

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1.5x scale

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.