Home / 75,421.41-104,078.18-45,223.40

Finding the Fourth Proportional to 75,421.41, 104,078.18 and 45,223.40

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Solution

The fourth proportional to 75,421.41, 104,078.18 and 45,223.40 is: 62,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,421.41 : 104,078.18 = 45,223.40 : x
  2. Step 2: Convert to fraction form
    75,421.41/104,078.18 = 45,223.40/x
  3. Step 3: Cross multiply
    75,421.41x = 104,078.18 × 45,223.40
  4. Step 4: Simplify right side
    75,421.41x = 4,706,769,165.41
  5. Step 5: Solve for x
    x = 4,706,769,165.41/75,421.41
  6. Step 6: Final answer
    x = 62,406.27

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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.