Home / 70,276.02-105,413.84-28,166.56

Finding the Fourth Proportional to 70,276.02, 105,413.84 and 28,166.56

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Solution

The fourth proportional to 70,276.02, 105,413.84 and 28,166.56 is: 42,249.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,276.02 : 105,413.84 = 28,166.56 : x
  2. Step 2: Convert to fraction form
    70,276.02/105,413.84 = 28,166.56/x
  3. Step 3: Cross multiply
    70,276.02x = 105,413.84 × 28,166.56
  4. Step 4: Simplify right side
    70,276.02x = 2,969,145,249.19
  5. Step 5: Solve for x
    x = 2,969,145,249.19/70,276.02
  6. Step 6: Final answer
    x = 42,249.76

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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.