Home / 91,830.84-126,716.81-51,549.03

Finding the Fourth Proportional to 91,830.84, 126,716.81 and 51,549.03

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Solution

The fourth proportional to 91,830.84, 126,716.81 and 51,549.03 is: 71,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.84 : 126,716.81 = 51,549.03 : x
  2. Step 2: Convert to fraction form
    91,830.84/126,716.81 = 51,549.03/x
  3. Step 3: Cross multiply
    91,830.84x = 126,716.81 × 51,549.03
  4. Step 4: Simplify right side
    91,830.84x = 6,532,128,640.19
  5. Step 5: Solve for x
    x = 6,532,128,640.19/91,830.84
  6. Step 6: Final answer
    x = 71,132.19

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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.