Home / 83,347.98-115,010.10-66,395.40

Finding the Fourth Proportional to 83,347.98, 115,010.10 and 66,395.40

Calculator

Solution

The fourth proportional to 83,347.98, 115,010.10 and 66,395.40 is: 91,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,347.98 : 115,010.10 = 66,395.40 : x
  2. Step 2: Convert to fraction form
    83,347.98/115,010.10 = 66,395.40/x
  3. Step 3: Cross multiply
    83,347.98x = 115,010.10 × 66,395.40
  4. Step 4: Simplify right side
    83,347.98x = 7,636,141,593.54
  5. Step 5: Solve for x
    x = 7,636,141,593.54/83,347.98
  6. Step 6: Final answer
    x = 91,617.60

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.