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Finding the Fourth Proportional to 86,580.48, 129,883.71 and 30,410.69

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Solution

The fourth proportional to 86,580.48, 129,883.71 and 30,410.69 is: 45,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.48 : 129,883.71 = 30,410.69 : x
  2. Step 2: Convert to fraction form
    86,580.48/129,883.71 = 30,410.69/x
  3. Step 3: Cross multiply
    86,580.48x = 129,883.71 × 30,410.69
  4. Step 4: Simplify right side
    86,580.48x = 3,949,853,240.86
  5. Step 5: Solve for x
    x = 3,949,853,240.86/86,580.48
  6. Step 6: Final answer
    x = 45,620.60

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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.