Home / 83,389.73-115,078.75-45,150.12

Finding the Fourth Proportional to 83,389.73, 115,078.75 and 45,150.12

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Solution

The fourth proportional to 83,389.73, 115,078.75 and 45,150.12 is: 62,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,389.73 : 115,078.75 = 45,150.12 : x
  2. Step 2: Convert to fraction form
    83,389.73/115,078.75 = 45,150.12/x
  3. Step 3: Cross multiply
    83,389.73x = 115,078.75 × 45,150.12
  4. Step 4: Simplify right side
    83,389.73x = 5,195,819,259.07
  5. Step 5: Solve for x
    x = 5,195,819,259.07/83,389.73
  6. Step 6: Final answer
    x = 62,307.67

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1.5x scale

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.