Home / 86,040.63-118,670.27-75,411.81

Finding the Fourth Proportional to 86,040.63, 118,670.27 and 75,411.81

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Solution

The fourth proportional to 86,040.63, 118,670.27 and 75,411.81 is: 104,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,040.63 : 118,670.27 = 75,411.81 : x
  2. Step 2: Convert to fraction form
    86,040.63/118,670.27 = 75,411.81/x
  3. Step 3: Cross multiply
    86,040.63x = 118,670.27 × 75,411.81
  4. Step 4: Simplify right side
    86,040.63x = 8,949,139,476.83
  5. Step 5: Solve for x
    x = 8,949,139,476.83/86,040.63
  6. Step 6: Final answer
    x = 104,010.62

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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.