Home / 86,689.27-130,051.73-39,281.59

Finding the Fourth Proportional to 86,689.27, 130,051.73 and 39,281.59

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Solution

The fourth proportional to 86,689.27, 130,051.73 and 39,281.59 is: 58,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.27 : 130,051.73 = 39,281.59 : x
  2. Step 2: Convert to fraction form
    86,689.27/130,051.73 = 39,281.59/x
  3. Step 3: Cross multiply
    86,689.27x = 130,051.73 × 39,281.59
  4. Step 4: Simplify right side
    86,689.27x = 5,108,638,736.65
  5. Step 5: Solve for x
    x = 5,108,638,736.65/86,689.27
  6. Step 6: Final answer
    x = 58,930.46

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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.