Home / 98,053.68-135,315.40-55,611.28

Finding the Fourth Proportional to 98,053.68, 135,315.40 and 55,611.28

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Solution

The fourth proportional to 98,053.68, 135,315.40 and 55,611.28 is: 76,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,053.68 : 135,315.40 = 55,611.28 : x
  2. Step 2: Convert to fraction form
    98,053.68/135,315.40 = 55,611.28/x
  3. Step 3: Cross multiply
    98,053.68x = 135,315.40 × 55,611.28
  4. Step 4: Simplify right side
    98,053.68x = 7,525,062,597.71
  5. Step 5: Solve for x
    x = 7,525,062,597.71/98,053.68
  6. Step 6: Final answer
    x = 76,744.32

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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.