Home / 78,435.12-117,586.59-34,028.46

Finding the Fourth Proportional to 78,435.12, 117,586.59 and 34,028.46

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Solution

The fourth proportional to 78,435.12, 117,586.59 and 34,028.46 is: 51,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,435.12 : 117,586.59 = 34,028.46 : x
  2. Step 2: Convert to fraction form
    78,435.12/117,586.59 = 34,028.46/x
  3. Step 3: Cross multiply
    78,435.12x = 117,586.59 × 34,028.46
  4. Step 4: Simplify right side
    78,435.12x = 4,001,290,574.35
  5. Step 5: Solve for x
    x = 4,001,290,574.35/78,435.12
  6. Step 6: Final answer
    x = 51,014.02

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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.