Home / 86,315.75-129,313.23-46,906.01

Finding the Fourth Proportional to 86,315.75, 129,313.23 and 46,906.01

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Solution

The fourth proportional to 86,315.75, 129,313.23 and 46,906.01 is: 70,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,315.75 : 129,313.23 = 46,906.01 : x
  2. Step 2: Convert to fraction form
    86,315.75/129,313.23 = 46,906.01/x
  3. Step 3: Cross multiply
    86,315.75x = 129,313.23 × 46,906.01
  4. Step 4: Simplify right side
    86,315.75x = 6,065,567,012.95
  5. Step 5: Solve for x
    x = 6,065,567,012.95/86,315.75
  6. Step 6: Final answer
    x = 70,271.85

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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.