Home / 86,205.40-129,303.96-30,043.24

Finding the Fourth Proportional to 86,205.40, 129,303.96 and 30,043.24

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Solution

The fourth proportional to 86,205.40, 129,303.96 and 30,043.24 is: 45,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205.40 : 129,303.96 = 30,043.24 : x
  2. Step 2: Convert to fraction form
    86,205.40/129,303.96 = 30,043.24/x
  3. Step 3: Cross multiply
    86,205.40x = 129,303.96 × 30,043.24
  4. Step 4: Simplify right side
    86,205.40x = 3,884,709,903.23
  5. Step 5: Solve for x
    x = 3,884,709,903.23/86,205.40
  6. Step 6: Final answer
    x = 45,063.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.