Home / 67,034.79-100,399.01-31,999.05

Finding the Fourth Proportional to 67,034.79, 100,399.01 and 31,999.05

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Solution

The fourth proportional to 67,034.79, 100,399.01 and 31,999.05 is: 47,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,034.79 : 100,399.01 = 31,999.05 : x
  2. Step 2: Convert to fraction form
    67,034.79/100,399.01 = 31,999.05/x
  3. Step 3: Cross multiply
    67,034.79x = 100,399.01 × 31,999.05
  4. Step 4: Simplify right side
    67,034.79x = 3,212,672,780.95
  5. Step 5: Solve for x
    x = 3,212,672,780.95/67,034.79
  6. Step 6: Final answer
    x = 47,925.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.