Home / 99,865.72-137,813.98-54,543.70

Finding the Fourth Proportional to 99,865.72, 137,813.98 and 54,543.70

Calculator

Solution

The fourth proportional to 99,865.72, 137,813.98 and 54,543.70 is: 75,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,865.72 : 137,813.98 = 54,543.70 : x
  2. Step 2: Convert to fraction form
    99,865.72/137,813.98 = 54,543.70/x
  3. Step 3: Cross multiply
    99,865.72x = 137,813.98 × 54,543.70
  4. Step 4: Simplify right side
    99,865.72x = 7,516,884,380.93
  5. Step 5: Solve for x
    x = 7,516,884,380.93/99,865.72
  6. Step 6: Final answer
    x = 75,269.92

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.