Home / 86,889.08-120,033.42-58,718.36

Finding the Fourth Proportional to 86,889.08, 120,033.42 and 58,718.36

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Solution

The fourth proportional to 86,889.08, 120,033.42 and 58,718.36 is: 81,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,889.08 : 120,033.42 = 58,718.36 : x
  2. Step 2: Convert to fraction form
    86,889.08/120,033.42 = 58,718.36/x
  3. Step 3: Cross multiply
    86,889.08x = 120,033.42 × 58,718.36
  4. Step 4: Simplify right side
    86,889.08x = 7,048,165,567.59
  5. Step 5: Solve for x
    x = 7,048,165,567.59/86,889.08
  6. Step 6: Final answer
    x = 81,116.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.