Home / 98,928.26-136,568.33-56,478.58

Finding the Fourth Proportional to 98,928.26, 136,568.33 and 56,478.58

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Solution

The fourth proportional to 98,928.26, 136,568.33 and 56,478.58 is: 77,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,928.26 : 136,568.33 = 56,478.58 : x
  2. Step 2: Convert to fraction form
    98,928.26/136,568.33 = 56,478.58/x
  3. Step 3: Cross multiply
    98,928.26x = 136,568.33 × 56,478.58
  4. Step 4: Simplify right side
    98,928.26x = 7,713,185,351.37
  5. Step 5: Solve for x
    x = 7,713,185,351.37/98,928.26
  6. Step 6: Final answer
    x = 77,967.46

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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.