Home / 64,665.39-96,998.10-20,295.60

Finding the Fourth Proportional to 64,665.39, 96,998.10 and 20,295.60

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Solution

The fourth proportional to 64,665.39, 96,998.10 and 20,295.60 is: 30,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,665.39 : 96,998.10 = 20,295.60 : x
  2. Step 2: Convert to fraction form
    64,665.39/96,998.10 = 20,295.60/x
  3. Step 3: Cross multiply
    64,665.39x = 96,998.10 × 20,295.60
  4. Step 4: Simplify right side
    64,665.39x = 1,968,634,638.36
  5. Step 5: Solve for x
    x = 1,968,634,638.36/64,665.39
  6. Step 6: Final answer
    x = 30,443.40

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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.