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Finding the Fourth Proportional to 75,045.40, 112,422.30 and 41,705.80

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Solution

The fourth proportional to 75,045.40, 112,422.30 and 41,705.80 is: 62,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.40 : 112,422.30 = 41,705.80 : x
  2. Step 2: Convert to fraction form
    75,045.40/112,422.30 = 41,705.80/x
  3. Step 3: Cross multiply
    75,045.40x = 112,422.30 × 41,705.80
  4. Step 4: Simplify right side
    75,045.40x = 4,688,661,959.34
  5. Step 5: Solve for x
    x = 4,688,661,959.34/75,045.40
  6. Step 6: Final answer
    x = 62,477.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.