Home / 82,890.25-124,386.81-30,304.24

Finding the Fourth Proportional to 82,890.25, 124,386.81 and 30,304.24

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Solution

The fourth proportional to 82,890.25, 124,386.81 and 30,304.24 is: 45,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,890.25 : 124,386.81 = 30,304.24 : x
  2. Step 2: Convert to fraction form
    82,890.25/124,386.81 = 30,304.24/x
  3. Step 3: Cross multiply
    82,890.25x = 124,386.81 × 30,304.24
  4. Step 4: Simplify right side
    82,890.25x = 3,769,447,743.07
  5. Step 5: Solve for x
    x = 3,769,447,743.07/82,890.25
  6. Step 6: Final answer
    x = 45,475.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.