Home / 77,321.30-106,754.79-59,384.25

Finding the Fourth Proportional to 77,321.30, 106,754.79 and 59,384.25

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Solution

The fourth proportional to 77,321.30, 106,754.79 and 59,384.25 is: 81,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,321.30 : 106,754.79 = 59,384.25 : x
  2. Step 2: Convert to fraction form
    77,321.30/106,754.79 = 59,384.25/x
  3. Step 3: Cross multiply
    77,321.30x = 106,754.79 × 59,384.25
  4. Step 4: Simplify right side
    77,321.30x = 6,339,553,138.06
  5. Step 5: Solve for x
    x = 6,339,553,138.06/77,321.30
  6. Step 6: Final answer
    x = 81,989.74

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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.