Home / 87,476.49-130,532.20-78,051.69

Finding the Fourth Proportional to 87,476.49, 130,532.20 and 78,051.69

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Solution

The fourth proportional to 87,476.49, 130,532.20 and 78,051.69 is: 116,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.49 : 130,532.20 = 78,051.69 : x
  2. Step 2: Convert to fraction form
    87,476.49/130,532.20 = 78,051.69/x
  3. Step 3: Cross multiply
    87,476.49x = 130,532.20 × 78,051.69
  4. Step 4: Simplify right side
    87,476.49x = 10,188,258,809.42
  5. Step 5: Solve for x
    x = 10,188,258,809.42/87,476.49
  6. Step 6: Final answer
    x = 116,468.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.