Home / 84,081.05-116,030.96-45,840.50

Finding the Fourth Proportional to 84,081.05, 116,030.96 and 45,840.50

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Solution

The fourth proportional to 84,081.05, 116,030.96 and 45,840.50 is: 63,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,081.05 : 116,030.96 = 45,840.50 : x
  2. Step 2: Convert to fraction form
    84,081.05/116,030.96 = 45,840.50/x
  3. Step 3: Cross multiply
    84,081.05x = 116,030.96 × 45,840.50
  4. Step 4: Simplify right side
    84,081.05x = 5,318,917,019.54
  5. Step 5: Solve for x
    x = 5,318,917,019.54/84,081.05
  6. Step 6: Final answer
    x = 63,259.40

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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.