Home / 47,129.40-65,037.60-28,272.60

Finding the Fourth Proportional to 47,129.40, 65,037.60 and 28,272.60

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Solution

The fourth proportional to 47,129.40, 65,037.60 and 28,272.60 is: 39,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,129.40 : 65,037.60 = 28,272.60 : x
  2. Step 2: Convert to fraction form
    47,129.40/65,037.60 = 28,272.60/x
  3. Step 3: Cross multiply
    47,129.40x = 65,037.60 × 28,272.60
  4. Step 4: Simplify right side
    47,129.40x = 1,838,782,049.76
  5. Step 5: Solve for x
    x = 1,838,782,049.76/47,129.40
  6. Step 6: Final answer
    x = 39,015.60

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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.