Home / 71,806.63-99,094.86-39,977.68

Finding the Fourth Proportional to 71,806.63, 99,094.86 and 39,977.68

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Solution

The fourth proportional to 71,806.63, 99,094.86 and 39,977.68 is: 55,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.63 : 99,094.86 = 39,977.68 : x
  2. Step 2: Convert to fraction form
    71,806.63/99,094.86 = 39,977.68/x
  3. Step 3: Cross multiply
    71,806.63x = 99,094.86 × 39,977.68
  4. Step 4: Simplify right side
    71,806.63x = 3,961,582,602.72
  5. Step 5: Solve for x
    x = 3,961,582,602.72/71,806.63
  6. Step 6: Final answer
    x = 55,170.15

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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.