Home / 83,880.18-115,762.83-62,622.54

Finding the Fourth Proportional to 83,880.18, 115,762.83 and 62,622.54

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Solution

The fourth proportional to 83,880.18, 115,762.83 and 62,622.54 is: 86,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,880.18 : 115,762.83 = 62,622.54 : x
  2. Step 2: Convert to fraction form
    83,880.18/115,762.83 = 62,622.54/x
  3. Step 3: Cross multiply
    83,880.18x = 115,762.83 × 62,622.54
  4. Step 4: Simplify right side
    83,880.18x = 7,249,362,452.19
  5. Step 5: Solve for x
    x = 7,249,362,452.19/83,880.18
  6. Step 6: Final answer
    x = 86,425.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.