Home / 82,987.72-124,488.60-36,273.40

Finding the Fourth Proportional to 82,987.72, 124,488.60 and 36,273.40

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Solution

The fourth proportional to 82,987.72, 124,488.60 and 36,273.40 is: 54,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,987.72 : 124,488.60 = 36,273.40 : x
  2. Step 2: Convert to fraction form
    82,987.72/124,488.60 = 36,273.40/x
  3. Step 3: Cross multiply
    82,987.72x = 124,488.60 × 36,273.40
  4. Step 4: Simplify right side
    82,987.72x = 4,515,624,783.24
  5. Step 5: Solve for x
    x = 4,515,624,783.24/82,987.72
  6. Step 6: Final answer
    x = 54,413.17

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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.