Home / 87,338.98-130,959.26-30,386.77

Finding the Fourth Proportional to 87,338.98, 130,959.26 and 30,386.77

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Solution

The fourth proportional to 87,338.98, 130,959.26 and 30,386.77 is: 45,563.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,338.98 : 130,959.26 = 30,386.77 : x
  2. Step 2: Convert to fraction form
    87,338.98/130,959.26 = 30,386.77/x
  3. Step 3: Cross multiply
    87,338.98x = 130,959.26 × 30,386.77
  4. Step 4: Simplify right side
    87,338.98x = 3,979,428,106.26
  5. Step 5: Solve for x
    x = 3,979,428,106.26/87,338.98
  6. Step 6: Final answer
    x = 45,563.02

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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.