Home / 84,042.23-116,109.86-71,427.42

Finding the Fourth Proportional to 84,042.23, 116,109.86 and 71,427.42

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Solution

The fourth proportional to 84,042.23, 116,109.86 and 71,427.42 is: 98,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.23 : 116,109.86 = 71,427.42 : x
  2. Step 2: Convert to fraction form
    84,042.23/116,109.86 = 71,427.42/x
  3. Step 3: Cross multiply
    84,042.23x = 116,109.86 × 71,427.42
  4. Step 4: Simplify right side
    84,042.23x = 8,293,427,379.22
  5. Step 5: Solve for x
    x = 8,293,427,379.22/84,042.23
  6. Step 6: Final answer
    x = 98,681.67

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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.