Home / 85,819.80-118,431.36-52,285.80

Finding the Fourth Proportional to 85,819.80, 118,431.36 and 52,285.80

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Solution

The fourth proportional to 85,819.80, 118,431.36 and 52,285.80 is: 72,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,819.80 : 118,431.36 = 52,285.80 : x
  2. Step 2: Convert to fraction form
    85,819.80/118,431.36 = 52,285.80/x
  3. Step 3: Cross multiply
    85,819.80x = 118,431.36 × 52,285.80
  4. Step 4: Simplify right side
    85,819.80x = 6,192,278,402.69
  5. Step 5: Solve for x
    x = 6,192,278,402.69/85,819.80
  6. Step 6: Final answer
    x = 72,154.43

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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.