Home / 53,121.60-79,682.40-46,209.60

Finding the Fourth Proportional to 53,121.60, 79,682.40 and 46,209.60

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Solution

The fourth proportional to 53,121.60, 79,682.40 and 46,209.60 is: 69,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.60 : 79,682.40 = 46,209.60 : x
  2. Step 2: Convert to fraction form
    53,121.60/79,682.40 = 46,209.60/x
  3. Step 3: Cross multiply
    53,121.60x = 79,682.40 × 46,209.60
  4. Step 4: Simplify right side
    53,121.60x = 3,682,091,831.04
  5. Step 5: Solve for x
    x = 3,682,091,831.04/53,121.60
  6. Step 6: Final answer
    x = 69,314.40

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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.