Home / 85,521.21-118,019.43-47,795.46

Finding the Fourth Proportional to 85,521.21, 118,019.43 and 47,795.46

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Solution

The fourth proportional to 85,521.21, 118,019.43 and 47,795.46 is: 65,957.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,521.21 : 118,019.43 = 47,795.46 : x
  2. Step 2: Convert to fraction form
    85,521.21/118,019.43 = 47,795.46/x
  3. Step 3: Cross multiply
    85,521.21x = 118,019.43 × 47,795.46
  4. Step 4: Simplify right side
    85,521.21x = 5,640,792,945.79
  5. Step 5: Solve for x
    x = 5,640,792,945.79/85,521.21
  6. Step 6: Final answer
    x = 65,957.82

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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.