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Finding the Fourth Proportional to 55,239.93, 82,859.91 and 13,686.93

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Solution

The fourth proportional to 55,239.93, 82,859.91 and 13,686.93 is: 20,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.93 : 82,859.91 = 13,686.93 : x
  2. Step 2: Convert to fraction form
    55,239.93/82,859.91 = 13,686.93/x
  3. Step 3: Cross multiply
    55,239.93x = 82,859.91 × 13,686.93
  4. Step 4: Simplify right side
    55,239.93x = 1,134,097,787.98
  5. Step 5: Solve for x
    x = 1,134,097,787.98/55,239.93
  6. Step 6: Final answer
    x = 20,530.40

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1.5x scale

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.