Home / 40,375.02-55,780.74-30,848.25

Finding the Fourth Proportional to 40,375.02, 55,780.74 and 30,848.25

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Solution

The fourth proportional to 40,375.02, 55,780.74 and 30,848.25 is: 42,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,375.02 : 55,780.74 = 30,848.25 : x
  2. Step 2: Convert to fraction form
    40,375.02/55,780.74 = 30,848.25/x
  3. Step 3: Cross multiply
    40,375.02x = 55,780.74 × 30,848.25
  4. Step 4: Simplify right side
    40,375.02x = 1,720,738,212.71
  5. Step 5: Solve for x
    x = 1,720,738,212.71/40,375.02
  6. Step 6: Final answer
    x = 42,618.88

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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.