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Finding the Fourth Proportional to 73,203.60, 109,805.40 and 64,455.60

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Solution

The fourth proportional to 73,203.60, 109,805.40 and 64,455.60 is: 96,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.60 : 109,805.40 = 64,455.60 : x
  2. Step 2: Convert to fraction form
    73,203.60/109,805.40 = 64,455.60/x
  3. Step 3: Cross multiply
    73,203.60x = 109,805.40 × 64,455.60
  4. Step 4: Simplify right side
    73,203.60x = 7,077,572,940.24
  5. Step 5: Solve for x
    x = 7,077,572,940.24/73,203.60
  6. Step 6: Final answer
    x = 96,683.40

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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.