Home / 87,076.84-130,615.28-57,487.76

Finding the Fourth Proportional to 87,076.84, 130,615.28 and 57,487.76

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Solution

The fourth proportional to 87,076.84, 130,615.28 and 57,487.76 is: 86,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076.84 : 130,615.28 = 57,487.76 : x
  2. Step 2: Convert to fraction form
    87,076.84/130,615.28 = 57,487.76/x
  3. Step 3: Cross multiply
    87,076.84x = 130,615.28 × 57,487.76
  4. Step 4: Simplify right side
    87,076.84x = 7,508,779,868.97
  5. Step 5: Solve for x
    x = 7,508,779,868.97/87,076.84
  6. Step 6: Final answer
    x = 86,231.65

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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.