Home / 77,246.18-106,541.70-51,781.27

Finding the Fourth Proportional to 77,246.18, 106,541.70 and 51,781.27

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Solution

The fourth proportional to 77,246.18, 106,541.70 and 51,781.27 is: 71,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.18 : 106,541.70 = 51,781.27 : x
  2. Step 2: Convert to fraction form
    77,246.18/106,541.70 = 51,781.27/x
  3. Step 3: Cross multiply
    77,246.18x = 106,541.70 × 51,781.27
  4. Step 4: Simplify right side
    77,246.18x = 5,516,864,001.25
  5. Step 5: Solve for x
    x = 5,516,864,001.25/77,246.18
  6. Step 6: Final answer
    x = 71,419.25

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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.