Home / 75,605.16-104,328.32-43,776.20

Finding the Fourth Proportional to 75,605.16, 104,328.32 and 43,776.20

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Solution

The fourth proportional to 75,605.16, 104,328.32 and 43,776.20 is: 60,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,605.16 : 104,328.32 = 43,776.20 : x
  2. Step 2: Convert to fraction form
    75,605.16/104,328.32 = 43,776.20/x
  3. Step 3: Cross multiply
    75,605.16x = 104,328.32 × 43,776.20
  4. Step 4: Simplify right side
    75,605.16x = 4,567,097,401.98
  5. Step 5: Solve for x
    x = 4,567,097,401.98/75,605.16
  6. Step 6: Final answer
    x = 60,407.22

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1.5x scale

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.