Home / 66,867.18-92,273.76-39,994.08

Finding the Fourth Proportional to 66,867.18, 92,273.76 and 39,994.08

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Solution

The fourth proportional to 66,867.18, 92,273.76 and 39,994.08 is: 55,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,867.18 : 92,273.76 = 39,994.08 : x
  2. Step 2: Convert to fraction form
    66,867.18/92,273.76 = 39,994.08/x
  3. Step 3: Cross multiply
    66,867.18x = 92,273.76 × 39,994.08
  4. Step 4: Simplify right side
    66,867.18x = 3,690,404,139.34
  5. Step 5: Solve for x
    x = 3,690,404,139.34/66,867.18
  6. Step 6: Final answer
    x = 55,190.07

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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.