Home / 77,269.20-115,903.80-47,744.70

Finding the Fourth Proportional to 77,269.20, 115,903.80 and 47,744.70

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Solution

The fourth proportional to 77,269.20, 115,903.80 and 47,744.70 is: 71,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,269.20 : 115,903.80 = 47,744.70 : x
  2. Step 2: Convert to fraction form
    77,269.20/115,903.80 = 47,744.70/x
  3. Step 3: Cross multiply
    77,269.20x = 115,903.80 × 47,744.70
  4. Step 4: Simplify right side
    77,269.20x = 5,533,792,159.86
  5. Step 5: Solve for x
    x = 5,533,792,159.86/77,269.20
  6. Step 6: Final answer
    x = 71,617.05

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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.