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Finding the Fourth Proportional to 86,499.84, 129,738.60 and 27,341.49

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Solution

The fourth proportional to 86,499.84, 129,738.60 and 27,341.49 is: 41,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,499.84 : 129,738.60 = 27,341.49 : x
  2. Step 2: Convert to fraction form
    86,499.84/129,738.60 = 27,341.49/x
  3. Step 3: Cross multiply
    86,499.84x = 129,738.60 × 27,341.49
  4. Step 4: Simplify right side
    86,499.84x = 3,547,246,634.51
  5. Step 5: Solve for x
    x = 3,547,246,634.51/86,499.84
  6. Step 6: Final answer
    x = 41,008.71

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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.