Home / 85,864.94-118,426.65-51,837.86

Finding the Fourth Proportional to 85,864.94, 118,426.65 and 51,837.86

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Solution

The fourth proportional to 85,864.94, 118,426.65 and 51,837.86 is: 71,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,864.94 : 118,426.65 = 51,837.86 : x
  2. Step 2: Convert to fraction form
    85,864.94/118,426.65 = 51,837.86/x
  3. Step 3: Cross multiply
    85,864.94x = 118,426.65 × 51,837.86
  4. Step 4: Simplify right side
    85,864.94x = 6,138,984,102.97
  5. Step 5: Solve for x
    x = 6,138,984,102.97/85,864.94
  6. Step 6: Final answer
    x = 71,495.82

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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.