Home / 76,144.36-105,126.92-48,931.48

Finding the Fourth Proportional to 76,144.36, 105,126.92 and 48,931.48

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Solution

The fourth proportional to 76,144.36, 105,126.92 and 48,931.48 is: 67,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,144.36 : 105,126.92 = 48,931.48 : x
  2. Step 2: Convert to fraction form
    76,144.36/105,126.92 = 48,931.48/x
  3. Step 3: Cross multiply
    76,144.36x = 105,126.92 × 48,931.48
  4. Step 4: Simplify right side
    76,144.36x = 5,144,015,783.44
  5. Step 5: Solve for x
    x = 5,144,015,783.44/76,144.36
  6. Step 6: Final answer
    x = 67,556.10

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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.