Home / 80,820.75-121,228.29-24,658.59

Finding the Fourth Proportional to 80,820.75, 121,228.29 and 24,658.59

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Solution

The fourth proportional to 80,820.75, 121,228.29 and 24,658.59 is: 36,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.75 : 121,228.29 = 24,658.59 : x
  2. Step 2: Convert to fraction form
    80,820.75/121,228.29 = 24,658.59/x
  3. Step 3: Cross multiply
    80,820.75x = 121,228.29 × 24,658.59
  4. Step 4: Simplify right side
    80,820.75x = 2,989,318,699.51
  5. Step 5: Solve for x
    x = 2,989,318,699.51/80,820.75
  6. Step 6: Final answer
    x = 36,987.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.