Home / 65,276.09-90,072.93-39,773.19

Finding the Fourth Proportional to 65,276.09, 90,072.93 and 39,773.19

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Solution

The fourth proportional to 65,276.09, 90,072.93 and 39,773.19 is: 54,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,276.09 : 90,072.93 = 39,773.19 : x
  2. Step 2: Convert to fraction form
    65,276.09/90,072.93 = 39,773.19/x
  3. Step 3: Cross multiply
    65,276.09x = 90,072.93 × 39,773.19
  4. Step 4: Simplify right side
    65,276.09x = 3,582,487,758.75
  5. Step 5: Solve for x
    x = 3,582,487,758.75/65,276.09
  6. Step 6: Final answer
    x = 54,882.08

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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.