Home / 83,428.93-125,055.87-39,018.25

Finding the Fourth Proportional to 83,428.93, 125,055.87 and 39,018.25

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Solution

The fourth proportional to 83,428.93, 125,055.87 and 39,018.25 is: 58,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,428.93 : 125,055.87 = 39,018.25 : x
  2. Step 2: Convert to fraction form
    83,428.93/125,055.87 = 39,018.25/x
  3. Step 3: Cross multiply
    83,428.93x = 125,055.87 × 39,018.25
  4. Step 4: Simplify right side
    83,428.93x = 4,879,461,199.63
  5. Step 5: Solve for x
    x = 4,879,461,199.63/83,428.93
  6. Step 6: Final answer
    x = 58,486.44

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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.