Home / 85,916.03-118,560-47,675.12

Finding the Fourth Proportional to 85,916.03, 118,560 and 47,675.12

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Solution

The fourth proportional to 85,916.03, 118,560 and 47,675.12 is: 65,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.03 : 118,560 = 47,675.12 : x
  2. Step 2: Convert to fraction form
    85,916.03/118,560 = 47,675.12/x
  3. Step 3: Cross multiply
    85,916.03x = 118,560 × 47,675.12
  4. Step 4: Simplify right side
    85,916.03x = 5,652,361,634.40
  5. Step 5: Solve for x
    x = 5,652,361,634.40/85,916.03
  6. Step 6: Final answer
    x = 65,789.38

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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.