Home / 86,915.84-119,915.78-48,669.66

Finding the Fourth Proportional to 86,915.84, 119,915.78 and 48,669.66

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Solution

The fourth proportional to 86,915.84, 119,915.78 and 48,669.66 is: 67,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,915.84 : 119,915.78 = 48,669.66 : x
  2. Step 2: Convert to fraction form
    86,915.84/119,915.78 = 48,669.66/x
  3. Step 3: Cross multiply
    86,915.84x = 119,915.78 × 48,669.66
  4. Step 4: Simplify right side
    86,915.84x = 5,836,259,997.89
  5. Step 5: Solve for x
    x = 5,836,259,997.89/86,915.84
  6. Step 6: Final answer
    x = 67,148.41

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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.