Home / 85,869.16-118,477.01-49,561.72

Finding the Fourth Proportional to 85,869.16, 118,477.01 and 49,561.72

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Solution

The fourth proportional to 85,869.16, 118,477.01 and 49,561.72 is: 68,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869.16 : 118,477.01 = 49,561.72 : x
  2. Step 2: Convert to fraction form
    85,869.16/118,477.01 = 49,561.72/x
  3. Step 3: Cross multiply
    85,869.16x = 118,477.01 × 49,561.72
  4. Step 4: Simplify right side
    85,869.16x = 5,871,924,396.06
  5. Step 5: Solve for x
    x = 5,871,924,396.06/85,869.16
  6. Step 6: Final answer
    x = 68,382.23

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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.