Home / 87,301.17-130,955.00-28,137.69

Finding the Fourth Proportional to 87,301.17, 130,955.00 and 28,137.69

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Solution

The fourth proportional to 87,301.17, 130,955.00 and 28,137.69 is: 42,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,301.17 : 130,955.00 = 28,137.69 : x
  2. Step 2: Convert to fraction form
    87,301.17/130,955.00 = 28,137.69/x
  3. Step 3: Cross multiply
    87,301.17x = 130,955.00 × 28,137.69
  4. Step 4: Simplify right side
    87,301.17x = 3,684,771,053.26
  5. Step 5: Solve for x
    x = 3,684,771,053.26/87,301.17
  6. Step 6: Final answer
    x = 42,207.58

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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.