Home / 86,032.64-118,737.96-61,913.46

Finding the Fourth Proportional to 86,032.64, 118,737.96 and 61,913.46

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Solution

The fourth proportional to 86,032.64, 118,737.96 and 61,913.46 is: 85,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,032.64 : 118,737.96 = 61,913.46 : x
  2. Step 2: Convert to fraction form
    86,032.64/118,737.96 = 61,913.46/x
  3. Step 3: Cross multiply
    86,032.64x = 118,737.96 × 61,913.46
  4. Step 4: Simplify right side
    86,032.64x = 7,351,477,936.94
  5. Step 5: Solve for x
    x = 7,351,477,936.94/86,032.64
  6. Step 6: Final answer
    x = 85,449.87

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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.