Home / 99,054.32-136,694.76-56,636.24

Finding the Fourth Proportional to 99,054.32, 136,694.76 and 56,636.24

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Solution

The fourth proportional to 99,054.32, 136,694.76 and 56,636.24 is: 78,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,054.32 : 136,694.76 = 56,636.24 : x
  2. Step 2: Convert to fraction form
    99,054.32/136,694.76 = 56,636.24/x
  3. Step 3: Cross multiply
    99,054.32x = 136,694.76 × 56,636.24
  4. Step 4: Simplify right side
    99,054.32x = 7,741,877,234.10
  5. Step 5: Solve for x
    x = 7,741,877,234.10/99,054.32
  6. Step 6: Final answer
    x = 78,157.90

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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.