Home / 74,780.15-112,137.48-28,000.22

Finding the Fourth Proportional to 74,780.15, 112,137.48 and 28,000.22

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Solution

The fourth proportional to 74,780.15, 112,137.48 and 28,000.22 is: 41,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,780.15 : 112,137.48 = 28,000.22 : x
  2. Step 2: Convert to fraction form
    74,780.15/112,137.48 = 28,000.22/x
  3. Step 3: Cross multiply
    74,780.15x = 112,137.48 × 28,000.22
  4. Step 4: Simplify right side
    74,780.15x = 3,139,873,549.56
  5. Step 5: Solve for x
    x = 3,139,873,549.56/74,780.15
  6. Step 6: Final answer
    x = 41,988.06

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1.5x scale

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.