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Finding the Fourth Proportional to 64,283.58, 88,700.73 and 40,393.32

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Solution

The fourth proportional to 64,283.58, 88,700.73 and 40,393.32 is: 55,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,283.58 : 88,700.73 = 40,393.32 : x
  2. Step 2: Convert to fraction form
    64,283.58/88,700.73 = 40,393.32/x
  3. Step 3: Cross multiply
    64,283.58x = 88,700.73 × 40,393.32
  4. Step 4: Simplify right side
    64,283.58x = 3,582,916,971.12
  5. Step 5: Solve for x
    x = 3,582,916,971.12/64,283.58
  6. Step 6: Final answer
    x = 55,736.11

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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.