Home / 77,172.51-115,741.14-37,171.08

Finding the Fourth Proportional to 77,172.51, 115,741.14 and 37,171.08

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Solution

The fourth proportional to 77,172.51, 115,741.14 and 37,171.08 is: 55,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,172.51 : 115,741.14 = 37,171.08 : x
  2. Step 2: Convert to fraction form
    77,172.51/115,741.14 = 37,171.08/x
  3. Step 3: Cross multiply
    77,172.51x = 115,741.14 × 37,171.08
  4. Step 4: Simplify right side
    77,172.51x = 4,302,223,174.23
  5. Step 5: Solve for x
    x = 4,302,223,174.23/77,172.51
  6. Step 6: Final answer
    x = 55,748.13

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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.