Home / 71,809.14-99,094.84-39,977.34

Finding the Fourth Proportional to 71,809.14, 99,094.84 and 39,977.34

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Solution

The fourth proportional to 71,809.14, 99,094.84 and 39,977.34 is: 55,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809.14 : 99,094.84 = 39,977.34 : x
  2. Step 2: Convert to fraction form
    71,809.14/99,094.84 = 39,977.34/x
  3. Step 3: Cross multiply
    71,809.14x = 99,094.84 × 39,977.34
  4. Step 4: Simplify right side
    71,809.14x = 3,961,548,110.93
  5. Step 5: Solve for x
    x = 3,961,548,110.93/71,809.14
  6. Step 6: Final answer
    x = 55,167.74

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1.5x scale

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.