Home / 54,730.45-82,070.16-28,428.13

Finding the Fourth Proportional to 54,730.45, 82,070.16 and 28,428.13

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Solution

The fourth proportional to 54,730.45, 82,070.16 and 28,428.13 is: 42,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,730.45 : 82,070.16 = 28,428.13 : x
  2. Step 2: Convert to fraction form
    54,730.45/82,070.16 = 28,428.13/x
  3. Step 3: Cross multiply
    54,730.45x = 82,070.16 × 28,428.13
  4. Step 4: Simplify right side
    54,730.45x = 2,333,101,453.85
  5. Step 5: Solve for x
    x = 2,333,101,453.85/54,730.45
  6. Step 6: Final answer
    x = 42,628.95

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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.