Home / 64,612.64-96,919.68-20,237.60

Finding the Fourth Proportional to 64,612.64, 96,919.68 and 20,237.60

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Solution

The fourth proportional to 64,612.64, 96,919.68 and 20,237.60 is: 30,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,612.64 : 96,919.68 = 20,237.60 : x
  2. Step 2: Convert to fraction form
    64,612.64/96,919.68 = 20,237.60/x
  3. Step 3: Cross multiply
    64,612.64x = 96,919.68 × 20,237.60
  4. Step 4: Simplify right side
    64,612.64x = 1,961,421,715.97
  5. Step 5: Solve for x
    x = 1,961,421,715.97/64,612.64
  6. Step 6: Final answer
    x = 30,356.63

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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.