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Finding the Fourth Proportional to 64,573.38, 89,112.92 and 35,501.40

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Solution

The fourth proportional to 64,573.38, 89,112.92 and 35,501.40 is: 48,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,573.38 : 89,112.92 = 35,501.40 : x
  2. Step 2: Convert to fraction form
    64,573.38/89,112.92 = 35,501.40/x
  3. Step 3: Cross multiply
    64,573.38x = 89,112.92 × 35,501.40
  4. Step 4: Simplify right side
    64,573.38x = 3,163,633,418.09
  5. Step 5: Solve for x
    x = 3,163,633,418.09/64,573.38
  6. Step 6: Final answer
    x = 48,992.84

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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.