Home / 64,923.21-89,570.66-39,440.10

Finding the Fourth Proportional to 64,923.21, 89,570.66 and 39,440.10

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Solution

The fourth proportional to 64,923.21, 89,570.66 and 39,440.10 is: 54,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,923.21 : 89,570.66 = 39,440.10 : x
  2. Step 2: Convert to fraction form
    64,923.21/89,570.66 = 39,440.10/x
  3. Step 3: Cross multiply
    64,923.21x = 89,570.66 × 39,440.10
  4. Step 4: Simplify right side
    64,923.21x = 3,532,675,590.27
  5. Step 5: Solve for x
    x = 3,532,675,590.27/64,923.21
  6. Step 6: Final answer
    x = 54,413.14

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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.