Home / 74,012.56-110,976.35-28,981.20

Finding the Fourth Proportional to 74,012.56, 110,976.35 and 28,981.20

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Solution

The fourth proportional to 74,012.56, 110,976.35 and 28,981.20 is: 43,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,012.56 : 110,976.35 = 28,981.20 : x
  2. Step 2: Convert to fraction form
    74,012.56/110,976.35 = 28,981.20/x
  3. Step 3: Cross multiply
    74,012.56x = 110,976.35 × 28,981.20
  4. Step 4: Simplify right side
    74,012.56x = 3,216,227,275.51
  5. Step 5: Solve for x
    x = 3,216,227,275.51/74,012.56
  6. Step 6: Final answer
    x = 43,455.15

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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.