Home / 76,349.55-105,381.69-49,144.08

Finding the Fourth Proportional to 76,349.55, 105,381.69 and 49,144.08

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Solution

The fourth proportional to 76,349.55, 105,381.69 and 49,144.08 is: 67,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,349.55 : 105,381.69 = 49,144.08 : x
  2. Step 2: Convert to fraction form
    76,349.55/105,381.69 = 49,144.08/x
  3. Step 3: Cross multiply
    76,349.55x = 105,381.69 × 49,144.08
  4. Step 4: Simplify right side
    76,349.55x = 5,178,886,203.90
  5. Step 5: Solve for x
    x = 5,178,886,203.90/76,349.55
  6. Step 6: Final answer
    x = 67,831.26

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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.