Home / 97,078.32-133,945.86-54,621.36

Finding the Fourth Proportional to 97,078.32, 133,945.86 and 54,621.36

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Solution

The fourth proportional to 97,078.32, 133,945.86 and 54,621.36 is: 75,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,078.32 : 133,945.86 = 54,621.36 : x
  2. Step 2: Convert to fraction form
    97,078.32/133,945.86 = 54,621.36/x
  3. Step 3: Cross multiply
    97,078.32x = 133,945.86 × 54,621.36
  4. Step 4: Simplify right side
    97,078.32x = 7,316,305,039.57
  5. Step 5: Solve for x
    x = 7,316,305,039.57/97,078.32
  6. Step 6: Final answer
    x = 75,364.97

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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.