Home / 68,628.16-102,891.60-46,386.40

Finding the Fourth Proportional to 68,628.16, 102,891.60 and 46,386.40

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Solution

The fourth proportional to 68,628.16, 102,891.60 and 46,386.40 is: 69,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,628.16 : 102,891.60 = 46,386.40 : x
  2. Step 2: Convert to fraction form
    68,628.16/102,891.60 = 46,386.40/x
  3. Step 3: Cross multiply
    68,628.16x = 102,891.60 × 46,386.40
  4. Step 4: Simplify right side
    68,628.16x = 4,772,770,914.24
  5. Step 5: Solve for x
    x = 4,772,770,914.24/68,628.16
  6. Step 6: Final answer
    x = 69,545.37

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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.