Home / 61,981.06-85,534.42-33,686.78

Finding the Fourth Proportional to 61,981.06, 85,534.42 and 33,686.78

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Solution

The fourth proportional to 61,981.06, 85,534.42 and 33,686.78 is: 46,488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,981.06 : 85,534.42 = 33,686.78 : x
  2. Step 2: Convert to fraction form
    61,981.06/85,534.42 = 33,686.78/x
  3. Step 3: Cross multiply
    61,981.06x = 85,534.42 × 33,686.78
  4. Step 4: Simplify right side
    61,981.06x = 2,881,379,188.97
  5. Step 5: Solve for x
    x = 2,881,379,188.97/61,981.06
  6. Step 6: Final answer
    x = 46,488.06

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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.