Home / 98,119.47-135,409.04-55,681.95

Finding the Fourth Proportional to 98,119.47, 135,409.04 and 55,681.95

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Solution

The fourth proportional to 98,119.47, 135,409.04 and 55,681.95 is: 76,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,119.47 : 135,409.04 = 55,681.95 : x
  2. Step 2: Convert to fraction form
    98,119.47/135,409.04 = 55,681.95/x
  3. Step 3: Cross multiply
    98,119.47x = 135,409.04 × 55,681.95
  4. Step 4: Simplify right side
    98,119.47x = 7,539,839,116.42
  5. Step 5: Solve for x
    x = 7,539,839,116.42/98,119.47
  6. Step 6: Final answer
    x = 76,843.46

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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.