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Finding the Fourth Proportional to 51,661.60, 77,434.80 and 29,485.60

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Solution

The fourth proportional to 51,661.60, 77,434.80 and 29,485.60 is: 44,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,661.60 : 77,434.80 = 29,485.60 : x
  2. Step 2: Convert to fraction form
    51,661.60/77,434.80 = 29,485.60/x
  3. Step 3: Cross multiply
    51,661.60x = 77,434.80 × 29,485.60
  4. Step 4: Simplify right side
    51,661.60x = 2,283,211,538.88
  5. Step 5: Solve for x
    x = 2,283,211,538.88/51,661.60
  6. Step 6: Final answer
    x = 44,195.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.