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Finding the Fourth Proportional to 96,378.40, 144,632.40 and 54,258.40

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Solution

The fourth proportional to 96,378.40, 144,632.40 and 54,258.40 is: 81,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,378.40 : 144,632.40 = 54,258.40 : x
  2. Step 2: Convert to fraction form
    96,378.40/144,632.40 = 54,258.40/x
  3. Step 3: Cross multiply
    96,378.40x = 144,632.40 × 54,258.40
  4. Step 4: Simplify right side
    96,378.40x = 7,847,522,612.16
  5. Step 5: Solve for x
    x = 7,847,522,612.16/96,378.40
  6. Step 6: Final answer
    x = 81,424.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.