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Finding the Fourth Proportional to 55,325.40, 82,866.18 and 45,728.76

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Solution

The fourth proportional to 55,325.40, 82,866.18 and 45,728.76 is: 68,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,325.40 : 82,866.18 = 45,728.76 : x
  2. Step 2: Convert to fraction form
    55,325.40/82,866.18 = 45,728.76/x
  3. Step 3: Cross multiply
    55,325.40x = 82,866.18 × 45,728.76
  4. Step 4: Simplify right side
    55,325.40x = 3,789,367,657.34
  5. Step 5: Solve for x
    x = 3,789,367,657.34/55,325.40
  6. Step 6: Final answer
    x = 68,492.37

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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.