Home / 56,771.24-78,338.34-32,905.40

Finding the Fourth Proportional to 56,771.24, 78,338.34 and 32,905.40

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Solution

The fourth proportional to 56,771.24, 78,338.34 and 32,905.40 is: 45,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771.24 : 78,338.34 = 32,905.40 : x
  2. Step 2: Convert to fraction form
    56,771.24/78,338.34 = 32,905.40/x
  3. Step 3: Cross multiply
    56,771.24x = 78,338.34 × 32,905.40
  4. Step 4: Simplify right side
    56,771.24x = 2,577,754,413.04
  5. Step 5: Solve for x
    x = 2,577,754,413.04/56,771.24
  6. Step 6: Final answer
    x = 45,405.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.