Home / 85,410.18-117,862.29-47,683.62

Finding the Fourth Proportional to 85,410.18, 117,862.29 and 47,683.62

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Solution

The fourth proportional to 85,410.18, 117,862.29 and 47,683.62 is: 65,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,410.18 : 117,862.29 = 47,683.62 : x
  2. Step 2: Convert to fraction form
    85,410.18/117,862.29 = 47,683.62/x
  3. Step 3: Cross multiply
    85,410.18x = 117,862.29 × 47,683.62
  4. Step 4: Simplify right side
    85,410.18x = 5,620,100,648.69
  5. Step 5: Solve for x
    x = 5,620,100,648.69/85,410.18
  6. Step 6: Final answer
    x = 65,801.30

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1.5x scale

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.