Home / 87,159.55-130,738.74-57,709.18

Finding the Fourth Proportional to 87,159.55, 130,738.74 and 57,709.18

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Solution

The fourth proportional to 87,159.55, 130,738.74 and 57,709.18 is: 86,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.55 : 130,738.74 = 57,709.18 : x
  2. Step 2: Convert to fraction form
    87,159.55/130,738.74 = 57,709.18/x
  3. Step 3: Cross multiply
    87,159.55x = 130,738.74 × 57,709.18
  4. Step 4: Simplify right side
    87,159.55x = 7,544,825,479.63
  5. Step 5: Solve for x
    x = 7,544,825,479.63/87,159.55
  6. Step 6: Final answer
    x = 86,563.38

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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.