Home / 77,350.15-115,795.50-42,183.19

Finding the Fourth Proportional to 77,350.15, 115,795.50 and 42,183.19

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Solution

The fourth proportional to 77,350.15, 115,795.50 and 42,183.19 is: 63,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,350.15 : 115,795.50 = 42,183.19 : x
  2. Step 2: Convert to fraction form
    77,350.15/115,795.50 = 42,183.19/x
  3. Step 3: Cross multiply
    77,350.15x = 115,795.50 × 42,183.19
  4. Step 4: Simplify right side
    77,350.15x = 4,884,623,577.65
  5. Step 5: Solve for x
    x = 4,884,623,577.65/77,350.15
  6. Step 6: Final answer
    x = 63,149.50

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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.