Home / 57,643.45-85,892.15-51,355.14

Finding the Fourth Proportional to 57,643.45, 85,892.15 and 51,355.14

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Solution

The fourth proportional to 57,643.45, 85,892.15 and 51,355.14 is: 76,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,643.45 : 85,892.15 = 51,355.14 : x
  2. Step 2: Convert to fraction form
    57,643.45/85,892.15 = 51,355.14/x
  3. Step 3: Cross multiply
    57,643.45x = 85,892.15 × 51,355.14
  4. Step 4: Simplify right side
    57,643.45x = 4,411,003,131.38
  5. Step 5: Solve for x
    x = 4,411,003,131.38/57,643.45
  6. Step 6: Final answer
    x = 76,522.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.