Home / 91,915.89-126,846.99-51,637.44

Finding the Fourth Proportional to 91,915.89, 126,846.99 and 51,637.44

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Solution

The fourth proportional to 91,915.89, 126,846.99 and 51,637.44 is: 71,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,915.89 : 126,846.99 = 51,637.44 : x
  2. Step 2: Convert to fraction form
    91,915.89/126,846.99 = 51,637.44/x
  3. Step 3: Cross multiply
    91,915.89x = 126,846.99 × 51,637.44
  4. Step 4: Simplify right side
    91,915.89x = 6,550,053,835.31
  5. Step 5: Solve for x
    x = 6,550,053,835.31/91,915.89
  6. Step 6: Final answer
    x = 71,261.39

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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.