Home / 84,078.61-116,034.25-51,387.06

Finding the Fourth Proportional to 84,078.61, 116,034.25 and 51,387.06

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Solution

The fourth proportional to 84,078.61, 116,034.25 and 51,387.06 is: 70,917.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,078.61 : 116,034.25 = 51,387.06 : x
  2. Step 2: Convert to fraction form
    84,078.61/116,034.25 = 51,387.06/x
  3. Step 3: Cross multiply
    84,078.61x = 116,034.25 × 51,387.06
  4. Step 4: Simplify right side
    84,078.61x = 5,962,658,572.60
  5. Step 5: Solve for x
    x = 5,962,658,572.60/84,078.61
  6. Step 6: Final answer
    x = 70,917.67

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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.