Home / 51,988.18-77,992.80-16,918.42

Finding the Fourth Proportional to 51,988.18, 77,992.80 and 16,918.42

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Solution

The fourth proportional to 51,988.18, 77,992.80 and 16,918.42 is: 25,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.18 : 77,992.80 = 16,918.42 : x
  2. Step 2: Convert to fraction form
    51,988.18/77,992.80 = 16,918.42/x
  3. Step 3: Cross multiply
    51,988.18x = 77,992.80 × 16,918.42
  4. Step 4: Simplify right side
    51,988.18x = 1,319,514,947.38
  5. Step 5: Solve for x
    x = 1,319,514,947.38/51,988.18
  6. Step 6: Final answer
    x = 25,381.06

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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.