Home / 77,637.03-107,172.36-53,471.90

Finding the Fourth Proportional to 77,637.03, 107,172.36 and 53,471.90

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Solution

The fourth proportional to 77,637.03, 107,172.36 and 53,471.90 is: 73,814.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,637.03 : 107,172.36 = 53,471.90 : x
  2. Step 2: Convert to fraction form
    77,637.03/107,172.36 = 53,471.90/x
  3. Step 3: Cross multiply
    77,637.03x = 107,172.36 × 53,471.90
  4. Step 4: Simplify right side
    77,637.03x = 5,730,709,180.82
  5. Step 5: Solve for x
    x = 5,730,709,180.82/77,637.03
  6. Step 6: Final answer
    x = 73,814.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.