Home / 76,020.40-113,899.68-53,797.20

Finding the Fourth Proportional to 76,020.40, 113,899.68 and 53,797.20

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Solution

The fourth proportional to 76,020.40, 113,899.68 and 53,797.20 is: 80,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,020.40 : 113,899.68 = 53,797.20 : x
  2. Step 2: Convert to fraction form
    76,020.40/113,899.68 = 53,797.20/x
  3. Step 3: Cross multiply
    76,020.40x = 113,899.68 × 53,797.20
  4. Step 4: Simplify right side
    76,020.40x = 6,127,483,864.90
  5. Step 5: Solve for x
    x = 6,127,483,864.90/76,020.40
  6. Step 6: Final answer
    x = 80,603.15

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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.