Home / 72,054.48-99,433.53-40,226.34

Finding the Fourth Proportional to 72,054.48, 99,433.53 and 40,226.34

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Solution

The fourth proportional to 72,054.48, 99,433.53 and 40,226.34 is: 55,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,054.48 : 99,433.53 = 40,226.34 : x
  2. Step 2: Convert to fraction form
    72,054.48/99,433.53 = 40,226.34/x
  3. Step 3: Cross multiply
    72,054.48x = 99,433.53 × 40,226.34
  4. Step 4: Simplify right side
    72,054.48x = 3,999,846,985.18
  5. Step 5: Solve for x
    x = 3,999,846,985.18/72,054.48
  6. Step 6: Final answer
    x = 55,511.43

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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.