Home / 83,427.09-115,129.79-45,701.34

Finding the Fourth Proportional to 83,427.09, 115,129.79 and 45,701.34

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Solution

The fourth proportional to 83,427.09, 115,129.79 and 45,701.34 is: 63,068.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.09 : 115,129.79 = 45,701.34 : x
  2. Step 2: Convert to fraction form
    83,427.09/115,129.79 = 45,701.34/x
  3. Step 3: Cross multiply
    83,427.09x = 115,129.79 × 45,701.34
  4. Step 4: Simplify right side
    83,427.09x = 5,261,585,676.92
  5. Step 5: Solve for x
    x = 5,261,585,676.92/83,427.09
  6. Step 6: Final answer
    x = 63,068.07

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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.