Home / 81,817.08-112,778.91-74,952.63

Finding the Fourth Proportional to 81,817.08, 112,778.91 and 74,952.63

Calculator

Solution

The fourth proportional to 81,817.08, 112,778.91 and 74,952.63 is: 103,316.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,817.08 : 112,778.91 = 74,952.63 : x
  2. Step 2: Convert to fraction form
    81,817.08/112,778.91 = 74,952.63/x
  3. Step 3: Cross multiply
    81,817.08x = 112,778.91 × 74,952.63
  4. Step 4: Simplify right side
    81,817.08x = 8,453,075,913.03
  5. Step 5: Solve for x
    x = 8,453,075,913.03/81,817.08
  6. Step 6: Final answer
    x = 103,316.76

Related Problems

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.