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Finding the Fourth Proportional to 65,309.94, 90,059.30 and 48,349.76

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Solution

The fourth proportional to 65,309.94, 90,059.30 and 48,349.76 is: 66,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,309.94 : 90,059.30 = 48,349.76 : x
  2. Step 2: Convert to fraction form
    65,309.94/90,059.30 = 48,349.76/x
  3. Step 3: Cross multiply
    65,309.94x = 90,059.30 × 48,349.76
  4. Step 4: Simplify right side
    65,309.94x = 4,354,345,540.77
  5. Step 5: Solve for x
    x = 4,354,345,540.77/65,309.94
  6. Step 6: Final answer
    x = 66,672.02

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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.