Home / 81,841.42-122,767.32-25,683.74

Finding the Fourth Proportional to 81,841.42, 122,767.32 and 25,683.74

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Solution

The fourth proportional to 81,841.42, 122,767.32 and 25,683.74 is: 38,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,841.42 : 122,767.32 = 25,683.74 : x
  2. Step 2: Convert to fraction form
    81,841.42/122,767.32 = 25,683.74/x
  3. Step 3: Cross multiply
    81,841.42x = 122,767.32 × 25,683.74
  4. Step 4: Simplify right side
    81,841.42x = 3,153,124,202.19
  5. Step 5: Solve for x
    x = 3,153,124,202.19/81,841.42
  6. Step 6: Final answer
    x = 38,527.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.