Home / 77,989.64-107,713.14-52,795.40

Finding the Fourth Proportional to 77,989.64, 107,713.14 and 52,795.40

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Solution

The fourth proportional to 77,989.64, 107,713.14 and 52,795.40 is: 72,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.64 : 107,713.14 = 52,795.40 : x
  2. Step 2: Convert to fraction form
    77,989.64/107,713.14 = 52,795.40/x
  3. Step 3: Cross multiply
    77,989.64x = 107,713.14 × 52,795.40
  4. Step 4: Simplify right side
    77,989.64x = 5,686,758,311.56
  5. Step 5: Solve for x
    x = 5,686,758,311.56/77,989.64
  6. Step 6: Final answer
    x = 72,916.84

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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.