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Finding the Fourth Proportional to 47,357.60, 65,344.74 and 30,364.88

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Solution

The fourth proportional to 47,357.60, 65,344.74 and 30,364.88 is: 41,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,357.60 : 65,344.74 = 30,364.88 : x
  2. Step 2: Convert to fraction form
    47,357.60/65,344.74 = 30,364.88/x
  3. Step 3: Cross multiply
    47,357.60x = 65,344.74 × 30,364.88
  4. Step 4: Simplify right side
    47,357.60x = 1,984,185,188.73
  5. Step 5: Solve for x
    x = 1,984,185,188.73/47,357.60
  6. Step 6: Final answer
    x = 41,897.93

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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.