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Finding the Fourth Proportional to 64,887, 89,544.08 and 35,079

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Solution

The fourth proportional to 64,887, 89,544.08 and 35,079 is: 48,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,887 : 89,544.08 = 35,079 : x
  2. Step 2: Convert to fraction form
    64,887/89,544.08 = 35,079/x
  3. Step 3: Cross multiply
    64,887x = 89,544.08 × 35,079
  4. Step 4: Simplify right side
    64,887x = 3,141,116,782.32
  5. Step 5: Solve for x
    x = 3,141,116,782.32/64,887
  6. Step 6: Final answer
    x = 48,409.03

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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.