Home / 51,985.06-77,976.84-12,541.84

Finding the Fourth Proportional to 51,985.06, 77,976.84 and 12,541.84

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Solution

The fourth proportional to 51,985.06, 77,976.84 and 12,541.84 is: 18,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.06 : 77,976.84 = 12,541.84 : x
  2. Step 2: Convert to fraction form
    51,985.06/77,976.84 = 12,541.84/x
  3. Step 3: Cross multiply
    51,985.06x = 77,976.84 × 12,541.84
  4. Step 4: Simplify right side
    51,985.06x = 977,973,050.99
  5. Step 5: Solve for x
    x = 977,973,050.99/51,985.06
  6. Step 6: Final answer
    x = 18,812.58

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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.