Home / 75,716.37-113,428.98-42,335.19

Finding the Fourth Proportional to 75,716.37, 113,428.98 and 42,335.19

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Solution

The fourth proportional to 75,716.37, 113,428.98 and 42,335.19 is: 63,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,716.37 : 113,428.98 = 42,335.19 : x
  2. Step 2: Convert to fraction form
    75,716.37/113,428.98 = 42,335.19/x
  3. Step 3: Cross multiply
    75,716.37x = 113,428.98 × 42,335.19
  4. Step 4: Simplify right side
    75,716.37x = 4,802,037,419.81
  5. Step 5: Solve for x
    x = 4,802,037,419.81/75,716.37
  6. Step 6: Final answer
    x = 63,421.39

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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.