Home / 96,765.12-133,542.72-54,320.64

Finding the Fourth Proportional to 96,765.12, 133,542.72 and 54,320.64

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Solution

The fourth proportional to 96,765.12, 133,542.72 and 54,320.64 is: 74,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,765.12 : 133,542.72 = 54,320.64 : x
  2. Step 2: Convert to fraction form
    96,765.12/133,542.72 = 54,320.64/x
  3. Step 3: Cross multiply
    96,765.12x = 133,542.72 × 54,320.64
  4. Step 4: Simplify right side
    96,765.12x = 7,254,126,017.74
  5. Step 5: Solve for x
    x = 7,254,126,017.74/96,765.12
  6. Step 6: Final answer
    x = 74,966.33

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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.