Home / 64,720.80-89,106.30-50,363.19

Finding the Fourth Proportional to 64,720.80, 89,106.30 and 50,363.19

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Solution

The fourth proportional to 64,720.80, 89,106.30 and 50,363.19 is: 69,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,720.80 : 89,106.30 = 50,363.19 : x
  2. Step 2: Convert to fraction form
    64,720.80/89,106.30 = 50,363.19/x
  3. Step 3: Cross multiply
    64,720.80x = 89,106.30 × 50,363.19
  4. Step 4: Simplify right side
    64,720.80x = 4,487,677,517.10
  5. Step 5: Solve for x
    x = 4,487,677,517.10/64,720.80
  6. Step 6: Final answer
    x = 69,339.03

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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.