Home / 99,344.76-137,099.37-56,911.49

Finding the Fourth Proportional to 99,344.76, 137,099.37 and 56,911.49

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Solution

The fourth proportional to 99,344.76, 137,099.37 and 56,911.49 is: 78,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.76 : 137,099.37 = 56,911.49 : x
  2. Step 2: Convert to fraction form
    99,344.76/137,099.37 = 56,911.49/x
  3. Step 3: Cross multiply
    99,344.76x = 137,099.37 × 56,911.49
  4. Step 4: Simplify right side
    99,344.76x = 7,802,529,146.68
  5. Step 5: Solve for x
    x = 7,802,529,146.68/99,344.76
  6. Step 6: Final answer
    x = 78,539.92

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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.