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Finding the Fourth Proportional to 85,062, 127,551.42 and 51,362.76

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Solution

The fourth proportional to 85,062, 127,551.42 and 51,362.76 is: 77,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062 : 127,551.42 = 51,362.76 : x
  2. Step 2: Convert to fraction form
    85,062/127,551.42 = 51,362.76/x
  3. Step 3: Cross multiply
    85,062x = 127,551.42 × 51,362.76
  4. Step 4: Simplify right side
    85,062x = 6,551,392,973.12
  5. Step 5: Solve for x
    x = 6,551,392,973.12/85,062
  6. Step 6: Final answer
    x = 77,019.03

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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.