Home / 57,521.40-86,315.04-31,228.35

Finding the Fourth Proportional to 57,521.40, 86,315.04 and 31,228.35

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Solution

The fourth proportional to 57,521.40, 86,315.04 and 31,228.35 is: 46,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.40 : 86,315.04 = 31,228.35 : x
  2. Step 2: Convert to fraction form
    57,521.40/86,315.04 = 31,228.35/x
  3. Step 3: Cross multiply
    57,521.40x = 86,315.04 × 31,228.35
  4. Step 4: Simplify right side
    57,521.40x = 2,695,476,279.38
  5. Step 5: Solve for x
    x = 2,695,476,279.38/57,521.40
  6. Step 6: Final answer
    x = 46,860.41

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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.