Home / 66,421.35-91,659.33-36,206.19

Finding the Fourth Proportional to 66,421.35, 91,659.33 and 36,206.19

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Solution

The fourth proportional to 66,421.35, 91,659.33 and 36,206.19 is: 49,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.35 : 91,659.33 = 36,206.19 : x
  2. Step 2: Convert to fraction form
    66,421.35/91,659.33 = 36,206.19/x
  3. Step 3: Cross multiply
    66,421.35x = 91,659.33 × 36,206.19
  4. Step 4: Simplify right side
    66,421.35x = 3,318,635,117.25
  5. Step 5: Solve for x
    x = 3,318,635,117.25/66,421.35
  6. Step 6: Final answer
    x = 49,963.38

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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.