Home / 96,621.76-133,338-54,180.16

Finding the Fourth Proportional to 96,621.76, 133,338 and 54,180.16

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Solution

The fourth proportional to 96,621.76, 133,338 and 54,180.16 is: 74,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,621.76 : 133,338 = 54,180.16 : x
  2. Step 2: Convert to fraction form
    96,621.76/133,338 = 54,180.16/x
  3. Step 3: Cross multiply
    96,621.76x = 133,338 × 54,180.16
  4. Step 4: Simplify right side
    96,621.76x = 7,224,274,174.08
  5. Step 5: Solve for x
    x = 7,224,274,174.08/96,621.76
  6. Step 6: Final answer
    x = 74,768.60

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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.