Home / 86,731.32-119,709.24-56,463.96

Finding the Fourth Proportional to 86,731.32, 119,709.24 and 56,463.96

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Solution

The fourth proportional to 86,731.32, 119,709.24 and 56,463.96 is: 77,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,731.32 : 119,709.24 = 56,463.96 : x
  2. Step 2: Convert to fraction form
    86,731.32/119,709.24 = 56,463.96/x
  3. Step 3: Cross multiply
    86,731.32x = 119,709.24 × 56,463.96
  4. Step 4: Simplify right side
    86,731.32x = 6,759,257,738.99
  5. Step 5: Solve for x
    x = 6,759,257,738.99/86,731.32
  6. Step 6: Final answer
    x = 77,933.30

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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.