Home / 87,027.47-130,504.29-30,881.71

Finding the Fourth Proportional to 87,027.47, 130,504.29 and 30,881.71

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Solution

The fourth proportional to 87,027.47, 130,504.29 and 30,881.71 is: 46,309.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,027.47 : 130,504.29 = 30,881.71 : x
  2. Step 2: Convert to fraction form
    87,027.47/130,504.29 = 30,881.71/x
  3. Step 3: Cross multiply
    87,027.47x = 130,504.29 × 30,881.71
  4. Step 4: Simplify right side
    87,027.47x = 4,030,194,985.01
  5. Step 5: Solve for x
    x = 4,030,194,985.01/87,027.47
  6. Step 6: Final answer
    x = 46,309.46

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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.