Home / 86,163.48-118,825.38-55,916.46

Finding the Fourth Proportional to 86,163.48, 118,825.38 and 55,916.46

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Solution

The fourth proportional to 86,163.48, 118,825.38 and 55,916.46 is: 77,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,163.48 : 118,825.38 = 55,916.46 : x
  2. Step 2: Convert to fraction form
    86,163.48/118,825.38 = 55,916.46/x
  3. Step 3: Cross multiply
    86,163.48x = 118,825.38 × 55,916.46
  4. Step 4: Simplify right side
    86,163.48x = 6,644,294,607.75
  5. Step 5: Solve for x
    x = 6,644,294,607.75/86,163.48
  6. Step 6: Final answer
    x = 77,112.65

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1.5x scale

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.