Home / 91,438.81-126,185.74-51,153.24

Finding the Fourth Proportional to 91,438.81, 126,185.74 and 51,153.24

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Solution

The fourth proportional to 91,438.81, 126,185.74 and 51,153.24 is: 70,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,438.81 : 126,185.74 = 51,153.24 : x
  2. Step 2: Convert to fraction form
    91,438.81/126,185.74 = 51,153.24/x
  3. Step 3: Cross multiply
    91,438.81x = 126,185.74 × 51,153.24
  4. Step 4: Simplify right side
    91,438.81x = 6,454,809,314.91
  5. Step 5: Solve for x
    x = 6,454,809,314.91/91,438.81
  6. Step 6: Final answer
    x = 70,591.58

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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.