Home / 99,558.40-137,390.59-54,846.40

Finding the Fourth Proportional to 99,558.40, 137,390.59 and 54,846.40

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Solution

The fourth proportional to 99,558.40, 137,390.59 and 54,846.40 is: 75,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,558.40 : 137,390.59 = 54,846.40 : x
  2. Step 2: Convert to fraction form
    99,558.40/137,390.59 = 54,846.40/x
  3. Step 3: Cross multiply
    99,558.40x = 137,390.59 × 54,846.40
  4. Step 4: Simplify right side
    99,558.40x = 7,535,379,255.38
  5. Step 5: Solve for x
    x = 7,535,379,255.38/99,558.40
  6. Step 6: Final answer
    x = 75,688.03

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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.