Home / 65,278.20-90,080.76-36,984.12

Finding the Fourth Proportional to 65,278.20, 90,080.76 and 36,984.12

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Solution

The fourth proportional to 65,278.20, 90,080.76 and 36,984.12 is: 51,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,278.20 : 90,080.76 = 36,984.12 : x
  2. Step 2: Convert to fraction form
    65,278.20/90,080.76 = 36,984.12/x
  3. Step 3: Cross multiply
    65,278.20x = 90,080.76 × 36,984.12
  4. Step 4: Simplify right side
    65,278.20x = 3,331,557,637.53
  5. Step 5: Solve for x
    x = 3,331,557,637.53/65,278.20
  6. Step 6: Final answer
    x = 51,036.30

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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.