Home / 75,770.18-113,725.29-38,356.51

Finding the Fourth Proportional to 75,770.18, 113,725.29 and 38,356.51

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Solution

The fourth proportional to 75,770.18, 113,725.29 and 38,356.51 is: 57,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,770.18 : 113,725.29 = 38,356.51 : x
  2. Step 2: Convert to fraction form
    75,770.18/113,725.29 = 38,356.51/x
  3. Step 3: Cross multiply
    75,770.18x = 113,725.29 × 38,356.51
  4. Step 4: Simplify right side
    75,770.18x = 4,362,105,223.14
  5. Step 5: Solve for x
    x = 4,362,105,223.14/75,770.18
  6. Step 6: Final answer
    x = 57,570.21

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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.