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Finding the Fourth Proportional to 45,803.60, 68,665.40 and 17,742.80

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Solution

The fourth proportional to 45,803.60, 68,665.40 and 17,742.80 is: 26,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,803.60 : 68,665.40 = 17,742.80 : x
  2. Step 2: Convert to fraction form
    45,803.60/68,665.40 = 17,742.80/x
  3. Step 3: Cross multiply
    45,803.60x = 68,665.40 × 17,742.80
  4. Step 4: Simplify right side
    45,803.60x = 1,218,316,459.12
  5. Step 5: Solve for x
    x = 1,218,316,459.12/45,803.60
  6. Step 6: Final answer
    x = 26,598.71

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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.