Home / 56,675.07-85,020.03-18,711.72

Finding the Fourth Proportional to 56,675.07, 85,020.03 and 18,711.72

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Solution

The fourth proportional to 56,675.07, 85,020.03 and 18,711.72 is: 28,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,675.07 : 85,020.03 = 18,711.72 : x
  2. Step 2: Convert to fraction form
    56,675.07/85,020.03 = 18,711.72/x
  3. Step 3: Cross multiply
    56,675.07x = 85,020.03 × 18,711.72
  4. Step 4: Simplify right side
    56,675.07x = 1,590,870,995.75
  5. Step 5: Solve for x
    x = 1,590,870,995.75/56,675.07
  6. Step 6: Final answer
    x = 28,070.03

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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.