Home / 74,835.41-112,220.17-28,055.48

Finding the Fourth Proportional to 74,835.41, 112,220.17 and 28,055.48

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Solution

The fourth proportional to 74,835.41, 112,220.17 and 28,055.48 is: 42,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,835.41 : 112,220.17 = 28,055.48 : x
  2. Step 2: Convert to fraction form
    74,835.41/112,220.17 = 28,055.48/x
  3. Step 3: Cross multiply
    74,835.41x = 112,220.17 × 28,055.48
  4. Step 4: Simplify right side
    74,835.41x = 3,148,390,103.79
  5. Step 5: Solve for x
    x = 3,148,390,103.79/74,835.41
  6. Step 6: Final answer
    x = 42,070.86

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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.