Home / 98,036.56-135,253.80-57,725.68

Finding the Fourth Proportional to 98,036.56, 135,253.80 and 57,725.68

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Solution

The fourth proportional to 98,036.56, 135,253.80 and 57,725.68 is: 79,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,036.56 : 135,253.80 = 57,725.68 : x
  2. Step 2: Convert to fraction form
    98,036.56/135,253.80 = 57,725.68/x
  3. Step 3: Cross multiply
    98,036.56x = 135,253.80 × 57,725.68
  4. Step 4: Simplify right side
    98,036.56x = 7,807,617,577.58
  5. Step 5: Solve for x
    x = 7,807,617,577.58/98,036.56
  6. Step 6: Final answer
    x = 79,639.86

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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.