Home / 77,285.16-115,970.80-41,745.76

Finding the Fourth Proportional to 77,285.16, 115,970.80 and 41,745.76

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Solution

The fourth proportional to 77,285.16, 115,970.80 and 41,745.76 is: 62,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,285.16 : 115,970.80 = 41,745.76 : x
  2. Step 2: Convert to fraction form
    77,285.16/115,970.80 = 41,745.76/x
  3. Step 3: Cross multiply
    77,285.16x = 115,970.80 × 41,745.76
  4. Step 4: Simplify right side
    77,285.16x = 4,841,289,183.81
  5. Step 5: Solve for x
    x = 4,841,289,183.81/77,285.16
  6. Step 6: Final answer
    x = 62,641.90

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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.