Home / 71,582.78-98,788.80-39,751.67

Finding the Fourth Proportional to 71,582.78, 98,788.80 and 39,751.67

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Solution

The fourth proportional to 71,582.78, 98,788.80 and 39,751.67 is: 54,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,582.78 : 98,788.80 = 39,751.67 : x
  2. Step 2: Convert to fraction form
    71,582.78/98,788.80 = 39,751.67/x
  3. Step 3: Cross multiply
    71,582.78x = 98,788.80 × 39,751.67
  4. Step 4: Simplify right side
    71,582.78x = 3,927,020,024.27
  5. Step 5: Solve for x
    x = 3,927,020,024.27/71,582.78
  6. Step 6: Final answer
    x = 54,859.85

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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.