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Finding the Fourth Proportional to 65,761.83, 90,729.54 and 37,077.89

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Solution

The fourth proportional to 65,761.83, 90,729.54 and 37,077.89 is: 51,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,761.83 : 90,729.54 = 37,077.89 : x
  2. Step 2: Convert to fraction form
    65,761.83/90,729.54 = 37,077.89/x
  3. Step 3: Cross multiply
    65,761.83x = 90,729.54 × 37,077.89
  4. Step 4: Simplify right side
    65,761.83x = 3,364,059,450.22
  5. Step 5: Solve for x
    x = 3,364,059,450.22/65,761.83
  6. Step 6: Final answer
    x = 51,155.20

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1.5x scale

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.