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Finding the Fourth Proportional to 64,506.60, 89,009.04 and 36,206.88

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Solution

The fourth proportional to 64,506.60, 89,009.04 and 36,206.88 is: 49,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,506.60 : 89,009.04 = 36,206.88 : x
  2. Step 2: Convert to fraction form
    64,506.60/89,009.04 = 36,206.88/x
  3. Step 3: Cross multiply
    64,506.60x = 89,009.04 × 36,206.88
  4. Step 4: Simplify right side
    64,506.60x = 3,222,739,630.20
  5. Step 5: Solve for x
    x = 3,222,739,630.20/64,506.60
  6. Step 6: Final answer
    x = 49,959.84

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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.