Home / 72,840.06-100,382.90-52,662.35

Finding the Fourth Proportional to 72,840.06, 100,382.90 and 52,662.35

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Solution

The fourth proportional to 72,840.06, 100,382.90 and 52,662.35 is: 72,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,840.06 : 100,382.90 = 52,662.35 : x
  2. Step 2: Convert to fraction form
    72,840.06/100,382.90 = 52,662.35/x
  3. Step 3: Cross multiply
    72,840.06x = 100,382.90 × 52,662.35
  4. Step 4: Simplify right side
    72,840.06x = 5,286,399,401.46
  5. Step 5: Solve for x
    x = 5,286,399,401.46/72,840.06
  6. Step 6: Final answer
    x = 72,575.44

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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.