Home / 68,984.40-103,476.60-57,830.70

Finding the Fourth Proportional to 68,984.40, 103,476.60 and 57,830.70

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Solution

The fourth proportional to 68,984.40, 103,476.60 and 57,830.70 is: 86,746.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,984.40 : 103,476.60 = 57,830.70 : x
  2. Step 2: Convert to fraction form
    68,984.40/103,476.60 = 57,830.70/x
  3. Step 3: Cross multiply
    68,984.40x = 103,476.60 × 57,830.70
  4. Step 4: Simplify right side
    68,984.40x = 5,984,124,211.62
  5. Step 5: Solve for x
    x = 5,984,124,211.62/68,984.40
  6. Step 6: Final answer
    x = 86,746.05

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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.