Home / 105,492.82-145,581.48-57,745.14

Finding the Fourth Proportional to 105,492.82, 145,581.48 and 57,745.14

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Solution

The fourth proportional to 105,492.82, 145,581.48 and 57,745.14 is: 79,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,492.82 : 145,581.48 = 57,745.14 : x
  2. Step 2: Convert to fraction form
    105,492.82/145,581.48 = 57,745.14/x
  3. Step 3: Cross multiply
    105,492.82x = 145,581.48 × 57,745.14
  4. Step 4: Simplify right side
    105,492.82x = 8,406,622,944.01
  5. Step 5: Solve for x
    x = 8,406,622,944.01/105,492.82
  6. Step 6: Final answer
    x = 79,689.05

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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.