Home / 82,880.40-114,364.80-56,081.28

Finding the Fourth Proportional to 82,880.40, 114,364.80 and 56,081.28

Calculator

Solution

The fourth proportional to 82,880.40, 114,364.80 and 56,081.28 is: 77,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,880.40 : 114,364.80 = 56,081.28 : x
  2. Step 2: Convert to fraction form
    82,880.40/114,364.80 = 56,081.28/x
  3. Step 3: Cross multiply
    82,880.40x = 114,364.80 × 56,081.28
  4. Step 4: Simplify right side
    82,880.40x = 6,413,724,370.94
  5. Step 5: Solve for x
    x = 6,413,724,370.94/82,880.40
  6. Step 6: Final answer
    x = 77,385.30

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.