Home / 53,440.40-80,160.60-28,557.20

Finding the Fourth Proportional to 53,440.40, 80,160.60 and 28,557.20

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Solution

The fourth proportional to 53,440.40, 80,160.60 and 28,557.20 is: 42,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,440.40 : 80,160.60 = 28,557.20 : x
  2. Step 2: Convert to fraction form
    53,440.40/80,160.60 = 28,557.20/x
  3. Step 3: Cross multiply
    53,440.40x = 80,160.60 × 28,557.20
  4. Step 4: Simplify right side
    53,440.40x = 2,289,162,286.32
  5. Step 5: Solve for x
    x = 2,289,162,286.32/53,440.40
  6. Step 6: Final answer
    x = 42,835.80

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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.