Home / 78,881.34-108,855.68-43,071.32

Finding the Fourth Proportional to 78,881.34, 108,855.68 and 43,071.32

Calculator

Solution

The fourth proportional to 78,881.34, 108,855.68 and 43,071.32 is: 59,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,881.34 : 108,855.68 = 43,071.32 : x
  2. Step 2: Convert to fraction form
    78,881.34/108,855.68 = 43,071.32/x
  3. Step 3: Cross multiply
    78,881.34x = 108,855.68 × 43,071.32
  4. Step 4: Simplify right side
    78,881.34x = 4,688,557,827.10
  5. Step 5: Solve for x
    x = 4,688,557,827.10/78,881.34
  6. Step 6: Final answer
    x = 59,438.11

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.