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Finding the Fourth Proportional to 68,256.57, 102,384.45 and 17,655.60

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Solution

The fourth proportional to 68,256.57, 102,384.45 and 17,655.60 is: 26,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,256.57 : 102,384.45 = 17,655.60 : x
  2. Step 2: Convert to fraction form
    68,256.57/102,384.45 = 17,655.60/x
  3. Step 3: Cross multiply
    68,256.57x = 102,384.45 × 17,655.60
  4. Step 4: Simplify right side
    68,256.57x = 1,807,658,895.42
  5. Step 5: Solve for x
    x = 1,807,658,895.42/68,256.57
  6. Step 6: Final answer
    x = 26,483.30

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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.