Home / 64,585.76-89,143.34-40,745.03

Finding the Fourth Proportional to 64,585.76, 89,143.34 and 40,745.03

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Solution

The fourth proportional to 64,585.76, 89,143.34 and 40,745.03 is: 56,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,585.76 : 89,143.34 = 40,745.03 : x
  2. Step 2: Convert to fraction form
    64,585.76/89,143.34 = 40,745.03/x
  3. Step 3: Cross multiply
    64,585.76x = 89,143.34 × 40,745.03
  4. Step 4: Simplify right side
    64,585.76x = 3,632,147,413.16
  5. Step 5: Solve for x
    x = 3,632,147,413.16/64,585.76
  6. Step 6: Final answer
    x = 56,237.59

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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.