Home / 75,099.69-103,637.05-43,267.90

Finding the Fourth Proportional to 75,099.69, 103,637.05 and 43,267.90

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Solution

The fourth proportional to 75,099.69, 103,637.05 and 43,267.90 is: 59,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,099.69 : 103,637.05 = 43,267.90 : x
  2. Step 2: Convert to fraction form
    75,099.69/103,637.05 = 43,267.90/x
  3. Step 3: Cross multiply
    75,099.69x = 103,637.05 × 43,267.90
  4. Step 4: Simplify right side
    75,099.69x = 4,484,157,515.70
  5. Step 5: Solve for x
    x = 4,484,157,515.70/75,099.69
  6. Step 6: Final answer
    x = 59,709.40

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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.