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Finding the Fourth Proportional to 64,572.88, 89,112.23 and 35,500.90

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Solution

The fourth proportional to 64,572.88, 89,112.23 and 35,500.90 is: 48,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,572.88 : 89,112.23 = 35,500.90 : x
  2. Step 2: Convert to fraction form
    64,572.88/89,112.23 = 35,500.90/x
  3. Step 3: Cross multiply
    64,572.88x = 89,112.23 × 35,500.90
  4. Step 4: Simplify right side
    64,572.88x = 3,163,563,742.94
  5. Step 5: Solve for x
    x = 3,163,563,742.94/64,572.88
  6. Step 6: Final answer
    x = 48,992.14

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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.