Home / 75,945.60-113,930.72-28,564.40

Finding the Fourth Proportional to 75,945.60, 113,930.72 and 28,564.40

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Solution

The fourth proportional to 75,945.60, 113,930.72 and 28,564.40 is: 42,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,945.60 : 113,930.72 = 28,564.40 : x
  2. Step 2: Convert to fraction form
    75,945.60/113,930.72 = 28,564.40/x
  3. Step 3: Cross multiply
    75,945.60x = 113,930.72 × 28,564.40
  4. Step 4: Simplify right side
    75,945.60x = 3,254,362,658.37
  5. Step 5: Solve for x
    x = 3,254,362,658.37/75,945.60
  6. Step 6: Final answer
    x = 42,851.23

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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.