Home / 63,455.81-87,559.55-39,281.09

Finding the Fourth Proportional to 63,455.81, 87,559.55 and 39,281.09

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Solution

The fourth proportional to 63,455.81, 87,559.55 and 39,281.09 is: 54,202.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,455.81 : 87,559.55 = 39,281.09 : x
  2. Step 2: Convert to fraction form
    63,455.81/87,559.55 = 39,281.09/x
  3. Step 3: Cross multiply
    63,455.81x = 87,559.55 × 39,281.09
  4. Step 4: Simplify right side
    63,455.81x = 3,439,433,929.71
  5. Step 5: Solve for x
    x = 3,439,433,929.71/63,455.81
  6. Step 6: Final answer
    x = 54,202.04

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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.