Home / 72,683.66-100,298.46-40,857.36

Finding the Fourth Proportional to 72,683.66, 100,298.46 and 40,857.36

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Solution

The fourth proportional to 72,683.66, 100,298.46 and 40,857.36 is: 56,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,683.66 : 100,298.46 = 40,857.36 : x
  2. Step 2: Convert to fraction form
    72,683.66/100,298.46 = 40,857.36/x
  3. Step 3: Cross multiply
    72,683.66x = 100,298.46 × 40,857.36
  4. Step 4: Simplify right side
    72,683.66x = 4,097,930,287.67
  5. Step 5: Solve for x
    x = 4,097,930,287.67/72,683.66
  6. Step 6: Final answer
    x = 56,380.35

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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.