Home / 89,577.13-123,575.13-57,756.28

Finding the Fourth Proportional to 89,577.13, 123,575.13 and 57,756.28

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Solution

The fourth proportional to 89,577.13, 123,575.13 and 57,756.28 is: 79,677.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,577.13 : 123,575.13 = 57,756.28 : x
  2. Step 2: Convert to fraction form
    89,577.13/123,575.13 = 57,756.28/x
  3. Step 3: Cross multiply
    89,577.13x = 123,575.13 × 57,756.28
  4. Step 4: Simplify right side
    89,577.13x = 7,137,239,809.32
  5. Step 5: Solve for x
    x = 7,137,239,809.32/89,577.13
  6. Step 6: Final answer
    x = 79,677.03

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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.