Home / 53,120.90-73,319.29-30,459.48

Finding the Fourth Proportional to 53,120.90, 73,319.29 and 30,459.48

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Solution

The fourth proportional to 53,120.90, 73,319.29 and 30,459.48 is: 42,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.90 : 73,319.29 = 30,459.48 : x
  2. Step 2: Convert to fraction form
    53,120.90/73,319.29 = 30,459.48/x
  3. Step 3: Cross multiply
    53,120.90x = 73,319.29 × 30,459.48
  4. Step 4: Simplify right side
    53,120.90x = 2,233,267,447.37
  5. Step 5: Solve for x
    x = 2,233,267,447.37/53,120.90
  6. Step 6: Final answer
    x = 42,041.22

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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.