Home / 74,523.12-102,841.80-40,989.12

Finding the Fourth Proportional to 74,523.12, 102,841.80 and 40,989.12

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Solution

The fourth proportional to 74,523.12, 102,841.80 and 40,989.12 is: 56,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,523.12 : 102,841.80 = 40,989.12 : x
  2. Step 2: Convert to fraction form
    74,523.12/102,841.80 = 40,989.12/x
  3. Step 3: Cross multiply
    74,523.12x = 102,841.80 × 40,989.12
  4. Step 4: Simplify right side
    74,523.12x = 4,215,394,881.22
  5. Step 5: Solve for x
    x = 4,215,394,881.22/74,523.12
  6. Step 6: Final answer
    x = 56,564.93

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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.