Home / 85,621.54-118,085.18-51,622.56

Finding the Fourth Proportional to 85,621.54, 118,085.18 and 51,622.56

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Solution

The fourth proportional to 85,621.54, 118,085.18 and 51,622.56 is: 71,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.54 : 118,085.18 = 51,622.56 : x
  2. Step 2: Convert to fraction form
    85,621.54/118,085.18 = 51,622.56/x
  3. Step 3: Cross multiply
    85,621.54x = 118,085.18 × 51,622.56
  4. Step 4: Simplify right side
    85,621.54x = 6,095,859,289.66
  5. Step 5: Solve for x
    x = 6,095,859,289.66/85,621.54
  6. Step 6: Final answer
    x = 71,195.39

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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.