Home / 71,123.21-98,152.86-40,908.52

Finding the Fourth Proportional to 71,123.21, 98,152.86 and 40,908.52

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Solution

The fourth proportional to 71,123.21, 98,152.86 and 40,908.52 is: 56,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,123.21 : 98,152.86 = 40,908.52 : x
  2. Step 2: Convert to fraction form
    71,123.21/98,152.86 = 40,908.52/x
  3. Step 3: Cross multiply
    71,123.21x = 98,152.86 × 40,908.52
  4. Step 4: Simplify right side
    71,123.21x = 4,015,288,236.41
  5. Step 5: Solve for x
    x = 4,015,288,236.41/71,123.21
  6. Step 6: Final answer
    x = 56,455.38

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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.