Home / 85,511.64-128,267.46-23,180.52

Finding the Fourth Proportional to 85,511.64, 128,267.46 and 23,180.52

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Solution

The fourth proportional to 85,511.64, 128,267.46 and 23,180.52 is: 34,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,511.64 : 128,267.46 = 23,180.52 : x
  2. Step 2: Convert to fraction form
    85,511.64/128,267.46 = 23,180.52/x
  3. Step 3: Cross multiply
    85,511.64x = 128,267.46 × 23,180.52
  4. Step 4: Simplify right side
    85,511.64x = 2,973,306,421.88
  5. Step 5: Solve for x
    x = 2,973,306,421.88/85,511.64
  6. Step 6: Final answer
    x = 34,770.78

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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.