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Finding the Fourth Proportional to 64,804.90, 89,427.58 and 36,127.68

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Solution

The fourth proportional to 64,804.90, 89,427.58 and 36,127.68 is: 49,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,804.90 : 89,427.58 = 36,127.68 : x
  2. Step 2: Convert to fraction form
    64,804.90/89,427.58 = 36,127.68/x
  3. Step 3: Cross multiply
    64,804.90x = 89,427.58 × 36,127.68
  4. Step 4: Simplify right side
    64,804.90x = 3,230,810,993.41
  5. Step 5: Solve for x
    x = 3,230,810,993.41/64,804.90
  6. Step 6: Final answer
    x = 49,854.42

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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.