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Finding the Fourth Proportional to 68,507.64, 102,740.40 and 26,384.40

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Solution

The fourth proportional to 68,507.64, 102,740.40 and 26,384.40 is: 39,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.64 : 102,740.40 = 26,384.40 : x
  2. Step 2: Convert to fraction form
    68,507.64/102,740.40 = 26,384.40/x
  3. Step 3: Cross multiply
    68,507.64x = 102,740.40 × 26,384.40
  4. Step 4: Simplify right side
    68,507.64x = 2,710,743,809.76
  5. Step 5: Solve for x
    x = 2,710,743,809.76/68,507.64
  6. Step 6: Final answer
    x = 39,568.49

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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.