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Finding the Fourth Proportional to 76,480.60, 105,500.44 and 48,137.08

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Solution

The fourth proportional to 76,480.60, 105,500.44 and 48,137.08 is: 66,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,480.60 : 105,500.44 = 48,137.08 : x
  2. Step 2: Convert to fraction form
    76,480.60/105,500.44 = 48,137.08/x
  3. Step 3: Cross multiply
    76,480.60x = 105,500.44 × 48,137.08
  4. Step 4: Simplify right side
    76,480.60x = 5,078,483,120.32
  5. Step 5: Solve for x
    x = 5,078,483,120.32/76,480.60
  6. Step 6: Final answer
    x = 66,402.24

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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.