Home / 72,724.50-100,361.03-47,574

Finding the Fourth Proportional to 72,724.50, 100,361.03 and 47,574

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Solution

The fourth proportional to 72,724.50, 100,361.03 and 47,574 is: 65,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724.50 : 100,361.03 = 47,574 : x
  2. Step 2: Convert to fraction form
    72,724.50/100,361.03 = 47,574/x
  3. Step 3: Cross multiply
    72,724.50x = 100,361.03 × 47,574
  4. Step 4: Simplify right side
    72,724.50x = 4,774,575,403.35
  5. Step 5: Solve for x
    x = 4,774,575,403.35/72,724.50
  6. Step 6: Final answer
    x = 65,652.91

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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.