Home / 81,615.89-122,329.05-46,580.15

Finding the Fourth Proportional to 81,615.89, 122,329.05 and 46,580.15

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Solution

The fourth proportional to 81,615.89, 122,329.05 and 46,580.15 is: 69,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,615.89 : 122,329.05 = 46,580.15 : x
  2. Step 2: Convert to fraction form
    81,615.89/122,329.05 = 46,580.15/x
  3. Step 3: Cross multiply
    81,615.89x = 122,329.05 × 46,580.15
  4. Step 4: Simplify right side
    81,615.89x = 5,698,104,886.71
  5. Step 5: Solve for x
    x = 5,698,104,886.71/81,615.89
  6. Step 6: Final answer
    x = 69,816.13

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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.