Home / 65,922.62-90,973.32-39,078.32

Finding the Fourth Proportional to 65,922.62, 90,973.32 and 39,078.32

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Solution

The fourth proportional to 65,922.62, 90,973.32 and 39,078.32 is: 53,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,922.62 : 90,973.32 = 39,078.32 : x
  2. Step 2: Convert to fraction form
    65,922.62/90,973.32 = 39,078.32/x
  3. Step 3: Cross multiply
    65,922.62x = 90,973.32 × 39,078.32
  4. Step 4: Simplify right side
    65,922.62x = 3,555,084,510.42
  5. Step 5: Solve for x
    x = 3,555,084,510.42/65,922.62
  6. Step 6: Final answer
    x = 53,928.14

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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.