Home / 91,830.21-126,715.95-51,548.41

Finding the Fourth Proportional to 91,830.21, 126,715.95 and 51,548.41

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Solution

The fourth proportional to 91,830.21, 126,715.95 and 51,548.41 is: 71,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.21 : 126,715.95 = 51,548.41 : x
  2. Step 2: Convert to fraction form
    91,830.21/126,715.95 = 51,548.41/x
  3. Step 3: Cross multiply
    91,830.21x = 126,715.95 × 51,548.41
  4. Step 4: Simplify right side
    91,830.21x = 6,532,005,744.14
  5. Step 5: Solve for x
    x = 6,532,005,744.14/91,830.21
  6. Step 6: Final answer
    x = 71,131.34

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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.