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Finding the Fourth Proportional to 61,397.09, 84,696.98 and 35,886.79

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Solution

The fourth proportional to 61,397.09, 84,696.98 and 35,886.79 is: 49,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,397.09 : 84,696.98 = 35,886.79 : x
  2. Step 2: Convert to fraction form
    61,397.09/84,696.98 = 35,886.79/x
  3. Step 3: Cross multiply
    61,397.09x = 84,696.98 × 35,886.79
  4. Step 4: Simplify right side
    61,397.09x = 3,039,502,784.02
  5. Step 5: Solve for x
    x = 3,039,502,784.02/61,397.09
  6. Step 6: Final answer
    x = 49,505.65

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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.