Home / 75,651.90-104,397.75-42,117.18

Finding the Fourth Proportional to 75,651.90, 104,397.75 and 42,117.18

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Solution

The fourth proportional to 75,651.90, 104,397.75 and 42,117.18 is: 58,120.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,651.90 : 104,397.75 = 42,117.18 : x
  2. Step 2: Convert to fraction form
    75,651.90/104,397.75 = 42,117.18/x
  3. Step 3: Cross multiply
    75,651.90x = 104,397.75 × 42,117.18
  4. Step 4: Simplify right side
    75,651.90x = 4,396,938,828.35
  5. Step 5: Solve for x
    x = 4,396,938,828.35/75,651.90
  6. Step 6: Final answer
    x = 58,120.67

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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.