Home / 64,261.28-88,683.96-40,379.12

Finding the Fourth Proportional to 64,261.28, 88,683.96 and 40,379.12

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Solution

The fourth proportional to 64,261.28, 88,683.96 and 40,379.12 is: 55,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,261.28 : 88,683.96 = 40,379.12 : x
  2. Step 2: Convert to fraction form
    64,261.28/88,683.96 = 40,379.12/x
  3. Step 3: Cross multiply
    64,261.28x = 88,683.96 × 40,379.12
  4. Step 4: Simplify right side
    64,261.28x = 3,580,980,262.92
  5. Step 5: Solve for x
    x = 3,580,980,262.92/64,261.28
  6. Step 6: Final answer
    x = 55,725.32

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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.