Home / 40,111.75-60,131.89-19,038.79

Finding the Fourth Proportional to 40,111.75, 60,131.89 and 19,038.79

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Solution

The fourth proportional to 40,111.75, 60,131.89 and 19,038.79 is: 28,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.75 : 60,131.89 = 19,038.79 : x
  2. Step 2: Convert to fraction form
    40,111.75/60,131.89 = 19,038.79/x
  3. Step 3: Cross multiply
    40,111.75x = 60,131.89 × 19,038.79
  4. Step 4: Simplify right side
    40,111.75x = 1,144,838,426.01
  5. Step 5: Solve for x
    x = 1,144,838,426.01/40,111.75
  6. Step 6: Final answer
    x = 28,541.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.