Home / 75,743.60-113,485.80-48,009.20

Finding the Fourth Proportional to 75,743.60, 113,485.80 and 48,009.20

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Solution

The fourth proportional to 75,743.60, 113,485.80 and 48,009.20 is: 71,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,743.60 : 113,485.80 = 48,009.20 : x
  2. Step 2: Convert to fraction form
    75,743.60/113,485.80 = 48,009.20/x
  3. Step 3: Cross multiply
    75,743.60x = 113,485.80 × 48,009.20
  4. Step 4: Simplify right side
    75,743.60x = 5,448,362,469.36
  5. Step 5: Solve for x
    x = 5,448,362,469.36/75,743.60
  6. Step 6: Final answer
    x = 71,931.65

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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.