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Finding the Fourth Proportional to 110,011.71, 165,018.20 and 39,889.20

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Solution

The fourth proportional to 110,011.71, 165,018.20 and 39,889.20 is: 59,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,011.71 : 165,018.20 = 39,889.20 : x
  2. Step 2: Convert to fraction form
    110,011.71/165,018.20 = 39,889.20/x
  3. Step 3: Cross multiply
    110,011.71x = 165,018.20 × 39,889.20
  4. Step 4: Simplify right side
    110,011.71x = 6,582,443,783.99
  5. Step 5: Solve for x
    x = 6,582,443,783.99/110,011.71
  6. Step 6: Final answer
    x = 59,834.03

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1.5x scale

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.