Home / 76,772.08-105,968.28-48,496.60

Finding the Fourth Proportional to 76,772.08, 105,968.28 and 48,496.60

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Solution

The fourth proportional to 76,772.08, 105,968.28 and 48,496.60 is: 66,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,772.08 : 105,968.28 = 48,496.60 : x
  2. Step 2: Convert to fraction form
    76,772.08/105,968.28 = 48,496.60/x
  3. Step 3: Cross multiply
    76,772.08x = 105,968.28 × 48,496.60
  4. Step 4: Simplify right side
    76,772.08x = 5,139,101,287.85
  5. Step 5: Solve for x
    x = 5,139,101,287.85/76,772.08
  6. Step 6: Final answer
    x = 66,939.72

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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.