Home / 74,985.22-112,474.99-18,825.76

Finding the Fourth Proportional to 74,985.22, 112,474.99 and 18,825.76

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Solution

The fourth proportional to 74,985.22, 112,474.99 and 18,825.76 is: 28,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.22 : 112,474.99 = 18,825.76 : x
  2. Step 2: Convert to fraction form
    74,985.22/112,474.99 = 18,825.76/x
  3. Step 3: Cross multiply
    74,985.22x = 112,474.99 × 18,825.76
  4. Step 4: Simplify right side
    74,985.22x = 2,117,427,167.74
  5. Step 5: Solve for x
    x = 2,117,427,167.74/74,985.22
  6. Step 6: Final answer
    x = 28,237.93

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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.