Home / 97,972.13-135,198.29-57,688.28

Finding the Fourth Proportional to 97,972.13, 135,198.29 and 57,688.28

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Solution

The fourth proportional to 97,972.13, 135,198.29 and 57,688.28 is: 79,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,972.13 : 135,198.29 = 57,688.28 : x
  2. Step 2: Convert to fraction form
    97,972.13/135,198.29 = 57,688.28/x
  3. Step 3: Cross multiply
    97,972.13x = 135,198.29 × 57,688.28
  4. Step 4: Simplify right side
    97,972.13x = 7,799,356,241.77
  5. Step 5: Solve for x
    x = 7,799,356,241.77/97,972.13
  6. Step 6: Final answer
    x = 79,607.91

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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.