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Finding the Fourth Proportional to 72,726.36, 100,361.71 and 40,895.49

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Solution

The fourth proportional to 72,726.36, 100,361.71 and 40,895.49 is: 56,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726.36 : 100,361.71 = 40,895.49 : x
  2. Step 2: Convert to fraction form
    72,726.36/100,361.71 = 40,895.49/x
  3. Step 3: Cross multiply
    72,726.36x = 100,361.71 × 40,895.49
  4. Step 4: Simplify right side
    72,726.36x = 4,104,341,307.69
  5. Step 5: Solve for x
    x = 4,104,341,307.69/72,726.36
  6. Step 6: Final answer
    x = 56,435.40

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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.