Home / 51,488.86-77,235.46-18,209.20

Finding the Fourth Proportional to 51,488.86, 77,235.46 and 18,209.20

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Solution

The fourth proportional to 51,488.86, 77,235.46 and 18,209.20 is: 27,314.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,488.86 : 77,235.46 = 18,209.20 : x
  2. Step 2: Convert to fraction form
    51,488.86/77,235.46 = 18,209.20/x
  3. Step 3: Cross multiply
    51,488.86x = 77,235.46 × 18,209.20
  4. Step 4: Simplify right side
    51,488.86x = 1,406,395,938.23
  5. Step 5: Solve for x
    x = 1,406,395,938.23/51,488.86
  6. Step 6: Final answer
    x = 27,314.57

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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.