Home / 40,108.90-60,123.63-19,011.64

Finding the Fourth Proportional to 40,108.90, 60,123.63 and 19,011.64

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Solution

The fourth proportional to 40,108.90, 60,123.63 and 19,011.64 is: 28,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.90 : 60,123.63 = 19,011.64 : x
  2. Step 2: Convert to fraction form
    40,108.90/60,123.63 = 19,011.64/x
  3. Step 3: Cross multiply
    40,108.90x = 60,123.63 × 19,011.64
  4. Step 4: Simplify right side
    40,108.90x = 1,143,048,809.05
  5. Step 5: Solve for x
    x = 1,143,048,809.05/40,108.90
  6. Step 6: Final answer
    x = 28,498.63

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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.