Home / 87,188.71-130,782.43-57,738.37

Finding the Fourth Proportional to 87,188.71, 130,782.43 and 57,738.37

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Solution

The fourth proportional to 87,188.71, 130,782.43 and 57,738.37 is: 86,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,188.71 : 130,782.43 = 57,738.37 : x
  2. Step 2: Convert to fraction form
    87,188.71/130,782.43 = 57,738.37/x
  3. Step 3: Cross multiply
    87,188.71x = 130,782.43 × 57,738.37
  4. Step 4: Simplify right side
    87,188.71x = 7,551,163,534.58
  5. Step 5: Solve for x
    x = 7,551,163,534.58/87,188.71
  6. Step 6: Final answer
    x = 86,607.13

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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.