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Finding the Fourth Proportional to 86,164.48, 129,246.76 and 27,004.76

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Solution

The fourth proportional to 86,164.48, 129,246.76 and 27,004.76 is: 40,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,164.48 : 129,246.76 = 27,004.76 : x
  2. Step 2: Convert to fraction form
    86,164.48/129,246.76 = 27,004.76/x
  3. Step 3: Cross multiply
    86,164.48x = 129,246.76 × 27,004.76
  4. Step 4: Simplify right side
    86,164.48x = 3,490,277,088.34
  5. Step 5: Solve for x
    x = 3,490,277,088.34/86,164.48
  6. Step 6: Final answer
    x = 40,507.15

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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.