Home / 74,779.93-112,168.98-18,620.51

Finding the Fourth Proportional to 74,779.93, 112,168.98 and 18,620.51

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Solution

The fourth proportional to 74,779.93, 112,168.98 and 18,620.51 is: 27,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,779.93 : 112,168.98 = 18,620.51 : x
  2. Step 2: Convert to fraction form
    74,779.93/112,168.98 = 18,620.51/x
  3. Step 3: Cross multiply
    74,779.93x = 112,168.98 × 18,620.51
  4. Step 4: Simplify right side
    74,779.93x = 2,088,643,052.93
  5. Step 5: Solve for x
    x = 2,088,643,052.93/74,779.93
  6. Step 6: Final answer
    x = 27,930.53

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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.