Home / 76,144.38-105,126.90-48,931.48

Finding the Fourth Proportional to 76,144.38, 105,126.90 and 48,931.48

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Solution

The fourth proportional to 76,144.38, 105,126.90 and 48,931.48 is: 67,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,144.38 : 105,126.90 = 48,931.48 : x
  2. Step 2: Convert to fraction form
    76,144.38/105,126.90 = 48,931.48/x
  3. Step 3: Cross multiply
    76,144.38x = 105,126.90 × 48,931.48
  4. Step 4: Simplify right side
    76,144.38x = 5,144,014,804.81
  5. Step 5: Solve for x
    x = 5,144,014,804.81/76,144.38
  6. Step 6: Final answer
    x = 67,556.07

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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.