Home / 86,148.15-129,090.33-57,963.81

Finding the Fourth Proportional to 86,148.15, 129,090.33 and 57,963.81

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Solution

The fourth proportional to 86,148.15, 129,090.33 and 57,963.81 is: 86,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,148.15 : 129,090.33 = 57,963.81 : x
  2. Step 2: Convert to fraction form
    86,148.15/129,090.33 = 57,963.81/x
  3. Step 3: Cross multiply
    86,148.15x = 129,090.33 × 57,963.81
  4. Step 4: Simplify right side
    86,148.15x = 7,482,567,360.96
  5. Step 5: Solve for x
    x = 7,482,567,360.96/86,148.15
  6. Step 6: Final answer
    x = 86,856.97

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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.