Home / 96,921.90-133,762.86-54,479.52

Finding the Fourth Proportional to 96,921.90, 133,762.86 and 54,479.52

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Solution

The fourth proportional to 96,921.90, 133,762.86 and 54,479.52 is: 75,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,921.90 : 133,762.86 = 54,479.52 : x
  2. Step 2: Convert to fraction form
    96,921.90/133,762.86 = 54,479.52/x
  3. Step 3: Cross multiply
    96,921.90x = 133,762.86 × 54,479.52
  4. Step 4: Simplify right side
    96,921.90x = 7,287,336,406.63
  5. Step 5: Solve for x
    x = 7,287,336,406.63/96,921.90
  6. Step 6: Final answer
    x = 75,187.72

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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.