Home / 54,030.12-81,058.14-20,750.46

Finding the Fourth Proportional to 54,030.12, 81,058.14 and 20,750.46

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Solution

The fourth proportional to 54,030.12, 81,058.14 and 20,750.46 is: 31,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,030.12 : 81,058.14 = 20,750.46 : x
  2. Step 2: Convert to fraction form
    54,030.12/81,058.14 = 20,750.46/x
  3. Step 3: Cross multiply
    54,030.12x = 81,058.14 × 20,750.46
  4. Step 4: Simplify right side
    54,030.12x = 1,681,993,691.74
  5. Step 5: Solve for x
    x = 1,681,993,691.74/54,030.12
  6. Step 6: Final answer
    x = 31,130.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.