Home / 64,120.55-88,517.48-45,040.86

Finding the Fourth Proportional to 64,120.55, 88,517.48 and 45,040.86

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Solution

The fourth proportional to 64,120.55, 88,517.48 and 45,040.86 is: 62,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.55 : 88,517.48 = 45,040.86 : x
  2. Step 2: Convert to fraction form
    64,120.55/88,517.48 = 45,040.86/x
  3. Step 3: Cross multiply
    64,120.55x = 88,517.48 × 45,040.86
  4. Step 4: Simplify right side
    64,120.55x = 3,986,903,199.03
  5. Step 5: Solve for x
    x = 3,986,903,199.03/64,120.55
  6. Step 6: Final answer
    x = 62,178.25

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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.