Home / 55,315.13-82,972.52-13,762.13

Finding the Fourth Proportional to 55,315.13, 82,972.52 and 13,762.13

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Solution

The fourth proportional to 55,315.13, 82,972.52 and 13,762.13 is: 20,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,315.13 : 82,972.52 = 13,762.13 : x
  2. Step 2: Convert to fraction form
    55,315.13/82,972.52 = 13,762.13/x
  3. Step 3: Cross multiply
    55,315.13x = 82,972.52 × 13,762.13
  4. Step 4: Simplify right side
    55,315.13x = 1,141,878,537.86
  5. Step 5: Solve for x
    x = 1,141,878,537.86/55,315.13
  6. Step 6: Final answer
    x = 20,643.15

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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.