Home / 74,675.12-103,051.35-40,683.50

Finding the Fourth Proportional to 74,675.12, 103,051.35 and 40,683.50

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Solution

The fourth proportional to 74,675.12, 103,051.35 and 40,683.50 is: 56,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,675.12 : 103,051.35 = 40,683.50 : x
  2. Step 2: Convert to fraction form
    74,675.12/103,051.35 = 40,683.50/x
  3. Step 3: Cross multiply
    74,675.12x = 103,051.35 × 40,683.50
  4. Step 4: Simplify right side
    74,675.12x = 4,192,489,597.73
  5. Step 5: Solve for x
    x = 4,192,489,597.73/74,675.12
  6. Step 6: Final answer
    x = 56,143.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.