Home / 85,536.53-128,421.15-48,122.93

Finding the Fourth Proportional to 85,536.53, 128,421.15 and 48,122.93

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Solution

The fourth proportional to 85,536.53, 128,421.15 and 48,122.93 is: 72,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536.53 : 128,421.15 = 48,122.93 : x
  2. Step 2: Convert to fraction form
    85,536.53/128,421.15 = 48,122.93/x
  3. Step 3: Cross multiply
    85,536.53x = 128,421.15 × 48,122.93
  4. Step 4: Simplify right side
    85,536.53x = 6,180,002,011.97
  5. Step 5: Solve for x
    x = 6,180,002,011.97/85,536.53
  6. Step 6: Final answer
    x = 72,249.86

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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.