Home / 53,121.40-73,319.98-30,459.98

Finding the Fourth Proportional to 53,121.40, 73,319.98 and 30,459.98

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Solution

The fourth proportional to 53,121.40, 73,319.98 and 30,459.98 is: 42,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.40 : 73,319.98 = 30,459.98 : x
  2. Step 2: Convert to fraction form
    53,121.40/73,319.98 = 30,459.98/x
  3. Step 3: Cross multiply
    53,121.40x = 73,319.98 × 30,459.98
  4. Step 4: Simplify right side
    53,121.40x = 2,233,325,124.40
  5. Step 5: Solve for x
    x = 2,233,325,124.40/53,121.40
  6. Step 6: Final answer
    x = 42,041.91

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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.