Home / 77,276.28-115,972.80-56,553.24

Finding the Fourth Proportional to 77,276.28, 115,972.80 and 56,553.24

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Solution

The fourth proportional to 77,276.28, 115,972.80 and 56,553.24 is: 84,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,276.28 : 115,972.80 = 56,553.24 : x
  2. Step 2: Convert to fraction form
    77,276.28/115,972.80 = 56,553.24/x
  3. Step 3: Cross multiply
    77,276.28x = 115,972.80 × 56,553.24
  4. Step 4: Simplify right side
    77,276.28x = 6,558,637,591.87
  5. Step 5: Solve for x
    x = 6,558,637,591.87/77,276.28
  6. Step 6: Final answer
    x = 84,872.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.