Home / 78,153.44-107,812.42-51,292.22

Finding the Fourth Proportional to 78,153.44, 107,812.42 and 51,292.22

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Solution

The fourth proportional to 78,153.44, 107,812.42 and 51,292.22 is: 70,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,153.44 : 107,812.42 = 51,292.22 : x
  2. Step 2: Convert to fraction form
    78,153.44/107,812.42 = 51,292.22/x
  3. Step 3: Cross multiply
    78,153.44x = 107,812.42 × 51,292.22
  4. Step 4: Simplify right side
    78,153.44x = 5,529,937,698.08
  5. Step 5: Solve for x
    x = 5,529,937,698.08/78,153.44
  6. Step 6: Final answer
    x = 70,757.45

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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.