Home / 51,421.38-77,112.63-28,035.06

Finding the Fourth Proportional to 51,421.38, 77,112.63 and 28,035.06

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Solution

The fourth proportional to 51,421.38, 77,112.63 and 28,035.06 is: 42,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.38 : 77,112.63 = 28,035.06 : x
  2. Step 2: Convert to fraction form
    51,421.38/77,112.63 = 28,035.06/x
  3. Step 3: Cross multiply
    51,421.38x = 77,112.63 × 28,035.06
  4. Step 4: Simplify right side
    51,421.38x = 2,161,857,208.81
  5. Step 5: Solve for x
    x = 2,161,857,208.81/51,421.38
  6. Step 6: Final answer
    x = 42,041.99

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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.