Home / 63,315.33-87,392.43-39,427.89

Finding the Fourth Proportional to 63,315.33, 87,392.43 and 39,427.89

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Solution

The fourth proportional to 63,315.33, 87,392.43 and 39,427.89 is: 54,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,315.33 : 87,392.43 = 39,427.89 : x
  2. Step 2: Convert to fraction form
    63,315.33/87,392.43 = 39,427.89/x
  3. Step 3: Cross multiply
    63,315.33x = 87,392.43 × 39,427.89
  4. Step 4: Simplify right side
    63,315.33x = 3,445,699,116.87
  5. Step 5: Solve for x
    x = 3,445,699,116.87/63,315.33
  6. Step 6: Final answer
    x = 54,421.25

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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.