Home / 57,639.04-79,556.13-39,272.53

Finding the Fourth Proportional to 57,639.04, 79,556.13 and 39,272.53

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Solution

The fourth proportional to 57,639.04, 79,556.13 and 39,272.53 is: 54,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.04 : 79,556.13 = 39,272.53 : x
  2. Step 2: Convert to fraction form
    57,639.04/79,556.13 = 39,272.53/x
  3. Step 3: Cross multiply
    57,639.04x = 79,556.13 × 39,272.53
  4. Step 4: Simplify right side
    57,639.04x = 3,124,370,502.11
  5. Step 5: Solve for x
    x = 3,124,370,502.11/57,639.04
  6. Step 6: Final answer
    x = 54,205.80

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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.