Home / 85,868.66-118,476.32-49,561.22

Finding the Fourth Proportional to 85,868.66, 118,476.32 and 49,561.22

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Solution

The fourth proportional to 85,868.66, 118,476.32 and 49,561.22 is: 68,381.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,868.66 : 118,476.32 = 49,561.22 : x
  2. Step 2: Convert to fraction form
    85,868.66/118,476.32 = 49,561.22/x
  3. Step 3: Cross multiply
    85,868.66x = 118,476.32 × 49,561.22
  4. Step 4: Simplify right side
    85,868.66x = 5,871,830,960.31
  5. Step 5: Solve for x
    x = 5,871,830,960.31/85,868.66
  6. Step 6: Final answer
    x = 68,381.54

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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.