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Finding the Fourth Proportional to 96,019.20, 144,028.80 and 54,547.20

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Solution

The fourth proportional to 96,019.20, 144,028.80 and 54,547.20 is: 81,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,019.20 : 144,028.80 = 54,547.20 : x
  2. Step 2: Convert to fraction form
    96,019.20/144,028.80 = 54,547.20/x
  3. Step 3: Cross multiply
    96,019.20x = 144,028.80 × 54,547.20
  4. Step 4: Simplify right side
    96,019.20x = 7,856,367,759.36
  5. Step 5: Solve for x
    x = 7,856,367,759.36/96,019.20
  6. Step 6: Final answer
    x = 81,820.80

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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.