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Finding the Fourth Proportional to 64,607.46, 96,911.20 and 20,237.70

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Solution

The fourth proportional to 64,607.46, 96,911.20 and 20,237.70 is: 30,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,607.46 : 96,911.20 = 20,237.70 : x
  2. Step 2: Convert to fraction form
    64,607.46/96,911.20 = 20,237.70/x
  3. Step 3: Cross multiply
    64,607.46x = 96,911.20 × 20,237.70
  4. Step 4: Simplify right side
    64,607.46x = 1,961,259,792.24
  5. Step 5: Solve for x
    x = 1,961,259,792.24/64,607.46
  6. Step 6: Final answer
    x = 30,356.55

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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.