Home / 85,682.15-118,254.43-53,422.03

Finding the Fourth Proportional to 85,682.15, 118,254.43 and 53,422.03

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Solution

The fourth proportional to 85,682.15, 118,254.43 and 53,422.03 is: 73,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,682.15 : 118,254.43 = 53,422.03 : x
  2. Step 2: Convert to fraction form
    85,682.15/118,254.43 = 53,422.03/x
  3. Step 3: Cross multiply
    85,682.15x = 118,254.43 × 53,422.03
  4. Step 4: Simplify right side
    85,682.15x = 6,317,391,921.69
  5. Step 5: Solve for x
    x = 6,317,391,921.69/85,682.15
  6. Step 6: Final answer
    x = 73,730.54

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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.