Home / 74,919.10-112,395.06-28,171.98

Finding the Fourth Proportional to 74,919.10, 112,395.06 and 28,171.98

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Solution

The fourth proportional to 74,919.10, 112,395.06 and 28,171.98 is: 42,264.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.10 : 112,395.06 = 28,171.98 : x
  2. Step 2: Convert to fraction form
    74,919.10/112,395.06 = 28,171.98/x
  3. Step 3: Cross multiply
    74,919.10x = 112,395.06 × 28,171.98
  4. Step 4: Simplify right side
    74,919.10x = 3,166,390,820.44
  5. Step 5: Solve for x
    x = 3,166,390,820.44/74,919.10
  6. Step 6: Final answer
    x = 42,264.13

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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.