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Finding the Fourth Proportional to 61,129.69, 91,702.73 and 26,077.55

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Solution

The fourth proportional to 61,129.69, 91,702.73 and 26,077.55 is: 39,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.69 : 91,702.73 = 26,077.55 : x
  2. Step 2: Convert to fraction form
    61,129.69/91,702.73 = 26,077.55/x
  3. Step 3: Cross multiply
    61,129.69x = 91,702.73 × 26,077.55
  4. Step 4: Simplify right side
    61,129.69x = 2,391,382,133.39
  5. Step 5: Solve for x
    x = 2,391,382,133.39/61,129.69
  6. Step 6: Final answer
    x = 39,119.82

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1.5x scale

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.