Home / 72,612.18-100,204.48-40,352.06

Finding the Fourth Proportional to 72,612.18, 100,204.48 and 40,352.06

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Solution

The fourth proportional to 72,612.18, 100,204.48 and 40,352.06 is: 55,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612.18 : 100,204.48 = 40,352.06 : x
  2. Step 2: Convert to fraction form
    72,612.18/100,204.48 = 40,352.06/x
  3. Step 3: Cross multiply
    72,612.18x = 100,204.48 × 40,352.06
  4. Step 4: Simplify right side
    72,612.18x = 4,043,457,189.23
  5. Step 5: Solve for x
    x = 4,043,457,189.23/72,612.18
  6. Step 6: Final answer
    x = 55,685.66

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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.