Home / 99,039.08-136,683.27-56,589.38

Finding the Fourth Proportional to 99,039.08, 136,683.27 and 56,589.38

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Solution

The fourth proportional to 99,039.08, 136,683.27 and 56,589.38 is: 78,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,039.08 : 136,683.27 = 56,589.38 : x
  2. Step 2: Convert to fraction form
    99,039.08/136,683.27 = 56,589.38/x
  3. Step 3: Cross multiply
    99,039.08x = 136,683.27 × 56,589.38
  4. Step 4: Simplify right side
    99,039.08x = 7,734,821,505.67
  5. Step 5: Solve for x
    x = 7,734,821,505.67/99,039.08
  6. Step 6: Final answer
    x = 78,098.68

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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.