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Finding the Fourth Proportional to 64,282.77, 88,699.68 and 40,392.54

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Solution

The fourth proportional to 64,282.77, 88,699.68 and 40,392.54 is: 55,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,282.77 : 88,699.68 = 40,392.54 : x
  2. Step 2: Convert to fraction form
    64,282.77/88,699.68 = 40,392.54/x
  3. Step 3: Cross multiply
    64,282.77x = 88,699.68 × 40,392.54
  4. Step 4: Simplify right side
    64,282.77x = 3,582,805,372.39
  5. Step 5: Solve for x
    x = 3,582,805,372.39/64,282.77
  6. Step 6: Final answer
    x = 55,735.08

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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.