Home / 85,617.95-118,138.97-53,764.30

Finding the Fourth Proportional to 85,617.95, 118,138.97 and 53,764.30

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Solution

The fourth proportional to 85,617.95, 118,138.97 and 53,764.30 is: 74,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,617.95 : 118,138.97 = 53,764.30 : x
  2. Step 2: Convert to fraction form
    85,617.95/118,138.97 = 53,764.30/x
  3. Step 3: Cross multiply
    85,617.95x = 118,138.97 × 53,764.30
  4. Step 4: Simplify right side
    85,617.95x = 6,351,658,165.25
  5. Step 5: Solve for x
    x = 6,351,658,165.25/85,617.95
  6. Step 6: Final answer
    x = 74,186.06

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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.