Home / 77,954.42-107,505.34-51,087.18

Finding the Fourth Proportional to 77,954.42, 107,505.34 and 51,087.18

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Solution

The fourth proportional to 77,954.42, 107,505.34 and 51,087.18 is: 70,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,954.42 : 107,505.34 = 51,087.18 : x
  2. Step 2: Convert to fraction form
    77,954.42/107,505.34 = 51,087.18/x
  3. Step 3: Cross multiply
    77,954.42x = 107,505.34 × 51,087.18
  4. Step 4: Simplify right side
    77,954.42x = 5,492,144,655.54
  5. Step 5: Solve for x
    x = 5,492,144,655.54/77,954.42
  6. Step 6: Final answer
    x = 70,453.28

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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.