Home / 99,240.76-136,954.84-56,812.96

Finding the Fourth Proportional to 99,240.76, 136,954.84 and 56,812.96

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Solution

The fourth proportional to 99,240.76, 136,954.84 and 56,812.96 is: 78,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,240.76 : 136,954.84 = 56,812.96 : x
  2. Step 2: Convert to fraction form
    99,240.76/136,954.84 = 56,812.96/x
  3. Step 3: Cross multiply
    99,240.76x = 136,954.84 × 56,812.96
  4. Step 4: Simplify right side
    99,240.76x = 7,780,809,846.73
  5. Step 5: Solve for x
    x = 7,780,809,846.73/99,240.76
  6. Step 6: Final answer
    x = 78,403.37

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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.