Home / 53,728.40-80,592.60-30,400.40

Finding the Fourth Proportional to 53,728.40, 80,592.60 and 30,400.40

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Solution

The fourth proportional to 53,728.40, 80,592.60 and 30,400.40 is: 45,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,728.40 : 80,592.60 = 30,400.40 : x
  2. Step 2: Convert to fraction form
    53,728.40/80,592.60 = 30,400.40/x
  3. Step 3: Cross multiply
    53,728.40x = 80,592.60 × 30,400.40
  4. Step 4: Simplify right side
    53,728.40x = 2,450,047,277.04
  5. Step 5: Solve for x
    x = 2,450,047,277.04/53,728.40
  6. Step 6: Final answer
    x = 45,600.60

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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.