Home / 85,161.81-117,521.78-47,435.25

Finding the Fourth Proportional to 85,161.81, 117,521.78 and 47,435.25

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Solution

The fourth proportional to 85,161.81, 117,521.78 and 47,435.25 is: 65,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,161.81 : 117,521.78 = 47,435.25 : x
  2. Step 2: Convert to fraction form
    85,161.81/117,521.78 = 47,435.25/x
  3. Step 3: Cross multiply
    85,161.81x = 117,521.78 × 47,435.25
  4. Step 4: Simplify right side
    85,161.81x = 5,574,674,777.57
  5. Step 5: Solve for x
    x = 5,574,674,777.57/85,161.81
  6. Step 6: Final answer
    x = 65,459.80

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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.