Home / 142,051.77-213,021.99-53,256.87

Finding the Fourth Proportional to 142,051.77, 213,021.99 and 53,256.87

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Solution

The fourth proportional to 142,051.77, 213,021.99 and 53,256.87 is: 79,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,051.77 : 213,021.99 = 53,256.87 : x
  2. Step 2: Convert to fraction form
    142,051.77/213,021.99 = 53,256.87/x
  3. Step 3: Cross multiply
    142,051.77x = 213,021.99 × 53,256.87
  4. Step 4: Simplify right side
    142,051.77x = 11,344,884,428.57
  5. Step 5: Solve for x
    x = 11,344,884,428.57/142,051.77
  6. Step 6: Final answer
    x = 79,864.44

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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.