Home / 54,886.48-75,742.56-31,012.40

Finding the Fourth Proportional to 54,886.48, 75,742.56 and 31,012.40

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Solution

The fourth proportional to 54,886.48, 75,742.56 and 31,012.40 is: 42,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,886.48 : 75,742.56 = 31,012.40 : x
  2. Step 2: Convert to fraction form
    54,886.48/75,742.56 = 31,012.40/x
  3. Step 3: Cross multiply
    54,886.48x = 75,742.56 × 31,012.40
  4. Step 4: Simplify right side
    54,886.48x = 2,348,958,567.74
  5. Step 5: Solve for x
    x = 2,348,958,567.74/54,886.48
  6. Step 6: Final answer
    x = 42,796.67

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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.