Home / 74,538.50-102,861.29-42,705.35

Finding the Fourth Proportional to 74,538.50, 102,861.29 and 42,705.35

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Solution

The fourth proportional to 74,538.50, 102,861.29 and 42,705.35 is: 58,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.50 : 102,861.29 = 42,705.35 : x
  2. Step 2: Convert to fraction form
    74,538.50/102,861.29 = 42,705.35/x
  3. Step 3: Cross multiply
    74,538.50x = 102,861.29 × 42,705.35
  4. Step 4: Simplify right side
    74,538.50x = 4,392,727,658.39
  5. Step 5: Solve for x
    x = 4,392,727,658.39/74,538.50
  6. Step 6: Final answer
    x = 58,932.33

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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.