Home / 87,421.85-120,577.58-60,206.58

Finding the Fourth Proportional to 87,421.85, 120,577.58 and 60,206.58

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Solution

The fourth proportional to 87,421.85, 120,577.58 and 60,206.58 is: 83,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421.85 : 120,577.58 = 60,206.58 : x
  2. Step 2: Convert to fraction form
    87,421.85/120,577.58 = 60,206.58/x
  3. Step 3: Cross multiply
    87,421.85x = 120,577.58 × 60,206.58
  4. Step 4: Simplify right side
    87,421.85x = 7,259,562,812.56
  5. Step 5: Solve for x
    x = 7,259,562,812.56/87,421.85
  6. Step 6: Final answer
    x = 83,040.60

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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.