Home / 74,782.74-112,141.27-28,002.81

Finding the Fourth Proportional to 74,782.74, 112,141.27 and 28,002.81

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Solution

The fourth proportional to 74,782.74, 112,141.27 and 28,002.81 is: 41,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782.74 : 112,141.27 = 28,002.81 : x
  2. Step 2: Convert to fraction form
    74,782.74/112,141.27 = 28,002.81/x
  3. Step 3: Cross multiply
    74,782.74x = 112,141.27 × 28,002.81
  4. Step 4: Simplify right side
    74,782.74x = 3,140,271,132.50
  5. Step 5: Solve for x
    x = 3,140,271,132.50/74,782.74
  6. Step 6: Final answer
    x = 41,991.92

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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.