Home / 61,221.12-84,454.97-38,534.64

Finding the Fourth Proportional to 61,221.12, 84,454.97 and 38,534.64

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Solution

The fourth proportional to 61,221.12, 84,454.97 and 38,534.64 is: 53,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.12 : 84,454.97 = 38,534.64 : x
  2. Step 2: Convert to fraction form
    61,221.12/84,454.97 = 38,534.64/x
  3. Step 3: Cross multiply
    61,221.12x = 84,454.97 × 38,534.64
  4. Step 4: Simplify right side
    61,221.12x = 3,254,441,672.49
  5. Step 5: Solve for x
    x = 3,254,441,672.49/61,221.12
  6. Step 6: Final answer
    x = 53,158.81

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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.