Home / 99,542.98-137,364.46-56,516.83

Finding the Fourth Proportional to 99,542.98, 137,364.46 and 56,516.83

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Solution

The fourth proportional to 99,542.98, 137,364.46 and 56,516.83 is: 77,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,542.98 : 137,364.46 = 56,516.83 : x
  2. Step 2: Convert to fraction form
    99,542.98/137,364.46 = 56,516.83/x
  3. Step 3: Cross multiply
    99,542.98x = 137,364.46 × 56,516.83
  4. Step 4: Simplify right side
    99,542.98x = 7,763,404,439.74
  5. Step 5: Solve for x
    x = 7,763,404,439.74/99,542.98
  6. Step 6: Final answer
    x = 77,990.48

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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.