Home / 51,980.05-77,969.35-12,536.83

Finding the Fourth Proportional to 51,980.05, 77,969.35 and 12,536.83

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Solution

The fourth proportional to 51,980.05, 77,969.35 and 12,536.83 is: 18,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,980.05 : 77,969.35 = 12,536.83 : x
  2. Step 2: Convert to fraction form
    51,980.05/77,969.35 = 12,536.83/x
  3. Step 3: Cross multiply
    51,980.05x = 77,969.35 × 12,536.83
  4. Step 4: Simplify right side
    51,980.05x = 977,488,486.16
  5. Step 5: Solve for x
    x = 977,488,486.16/51,980.05
  6. Step 6: Final answer
    x = 18,805.07

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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.