Home / 74,851.56-112,261.98-28,103.40

Finding the Fourth Proportional to 74,851.56, 112,261.98 and 28,103.40

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Solution

The fourth proportional to 74,851.56, 112,261.98 and 28,103.40 is: 42,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,851.56 : 112,261.98 = 28,103.40 : x
  2. Step 2: Convert to fraction form
    74,851.56/112,261.98 = 28,103.40/x
  3. Step 3: Cross multiply
    74,851.56x = 112,261.98 × 28,103.40
  4. Step 4: Simplify right side
    74,851.56x = 3,154,943,328.73
  5. Step 5: Solve for x
    x = 3,154,943,328.73/74,851.56
  6. Step 6: Final answer
    x = 42,149.33

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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.