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Finding the Fourth Proportional to 85,500.80, 128,258.48 and 22,329.32

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Solution

The fourth proportional to 85,500.80, 128,258.48 and 22,329.32 is: 33,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.80 : 128,258.48 = 22,329.32 : x
  2. Step 2: Convert to fraction form
    85,500.80/128,258.48 = 22,329.32/x
  3. Step 3: Cross multiply
    85,500.80x = 128,258.48 × 22,329.32
  4. Step 4: Simplify right side
    85,500.80x = 2,863,924,642.63
  5. Step 5: Solve for x
    x = 2,863,924,642.63/85,500.80
  6. Step 6: Final answer
    x = 33,495.88

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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.