Home / 85,534.53-128,418.15-48,120.93

Finding the Fourth Proportional to 85,534.53, 128,418.15 and 48,120.93

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Solution

The fourth proportional to 85,534.53, 128,418.15 and 48,120.93 is: 72,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,534.53 : 128,418.15 = 48,120.93 : x
  2. Step 2: Convert to fraction form
    85,534.53/128,418.15 = 48,120.93/x
  3. Step 3: Cross multiply
    85,534.53x = 128,418.15 × 48,120.93
  4. Step 4: Simplify right side
    85,534.53x = 6,179,600,806.88
  5. Step 5: Solve for x
    x = 6,179,600,806.88/85,534.53
  6. Step 6: Final answer
    x = 72,246.86

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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.