Home / 91,233.81-125,863.74-57,219.21

Finding the Fourth Proportional to 91,233.81, 125,863.74 and 57,219.21

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Solution

The fourth proportional to 91,233.81, 125,863.74 and 57,219.21 is: 78,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,233.81 : 125,863.74 = 57,219.21 : x
  2. Step 2: Convert to fraction form
    91,233.81/125,863.74 = 57,219.21/x
  3. Step 3: Cross multiply
    91,233.81x = 125,863.74 × 57,219.21
  4. Step 4: Simplify right side
    91,233.81x = 7,201,823,770.45
  5. Step 5: Solve for x
    x = 7,201,823,770.45/91,233.81
  6. Step 6: Final answer
    x = 78,938.10

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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.