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Finding the Fourth Proportional to 65,994.55, 91,073.13 and 35,779.79

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Solution

The fourth proportional to 65,994.55, 91,073.13 and 35,779.79 is: 49,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,994.55 : 91,073.13 = 35,779.79 : x
  2. Step 2: Convert to fraction form
    65,994.55/91,073.13 = 35,779.79/x
  3. Step 3: Cross multiply
    65,994.55x = 91,073.13 × 35,779.79
  4. Step 4: Simplify right side
    65,994.55x = 3,258,577,559.55
  5. Step 5: Solve for x
    x = 3,258,577,559.55/65,994.55
  6. Step 6: Final answer
    x = 49,376.47

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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.