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Finding the Fourth Proportional to 77,403.60, 115,951.80 and 44,533.20

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Solution

The fourth proportional to 77,403.60, 115,951.80 and 44,533.20 is: 66,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,403.60 : 115,951.80 = 44,533.20 : x
  2. Step 2: Convert to fraction form
    77,403.60/115,951.80 = 44,533.20/x
  3. Step 3: Cross multiply
    77,403.60x = 115,951.80 × 44,533.20
  4. Step 4: Simplify right side
    77,403.60x = 5,163,704,699.76
  5. Step 5: Solve for x
    x = 5,163,704,699.76/77,403.60
  6. Step 6: Final answer
    x = 66,711.43

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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.