Home / 54,510.40-81,768.30-28,266.40

Finding the Fourth Proportional to 54,510.40, 81,768.30 and 28,266.40

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Solution

The fourth proportional to 54,510.40, 81,768.30 and 28,266.40 is: 42,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,510.40 : 81,768.30 = 28,266.40 : x
  2. Step 2: Convert to fraction form
    54,510.40/81,768.30 = 28,266.40/x
  3. Step 3: Cross multiply
    54,510.40x = 81,768.30 × 28,266.40
  4. Step 4: Simplify right side
    54,510.40x = 2,311,295,475.12
  5. Step 5: Solve for x
    x = 2,311,295,475.12/54,510.40
  6. Step 6: Final answer
    x = 42,401.00

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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.