Home / 88,156.60-121,658.94-49,915.54

Finding the Fourth Proportional to 88,156.60, 121,658.94 and 49,915.54

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Solution

The fourth proportional to 88,156.60, 121,658.94 and 49,915.54 is: 68,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,156.60 : 121,658.94 = 49,915.54 : x
  2. Step 2: Convert to fraction form
    88,156.60/121,658.94 = 49,915.54/x
  3. Step 3: Cross multiply
    88,156.60x = 121,658.94 × 49,915.54
  4. Step 4: Simplify right side
    88,156.60x = 6,072,671,697.61
  5. Step 5: Solve for x
    x = 6,072,671,697.61/88,156.60
  6. Step 6: Final answer
    x = 68,885.05

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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.