Home / 75,702.09-113,600.12-51,411.81

Finding the Fourth Proportional to 75,702.09, 113,600.12 and 51,411.81

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Solution

The fourth proportional to 75,702.09, 113,600.12 and 51,411.81 is: 77,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,702.09 : 113,600.12 = 51,411.81 : x
  2. Step 2: Convert to fraction form
    75,702.09/113,600.12 = 51,411.81/x
  3. Step 3: Cross multiply
    75,702.09x = 113,600.12 × 51,411.81
  4. Step 4: Simplify right side
    75,702.09x = 5,840,387,528.36
  5. Step 5: Solve for x
    x = 5,840,387,528.36/75,702.09
  6. Step 6: Final answer
    x = 77,149.62

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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.