Home / 90,877.21-125,515.52-60,609.94

Finding the Fourth Proportional to 90,877.21, 125,515.52 and 60,609.94

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Solution

The fourth proportional to 90,877.21, 125,515.52 and 60,609.94 is: 83,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,877.21 : 125,515.52 = 60,609.94 : x
  2. Step 2: Convert to fraction form
    90,877.21/125,515.52 = 60,609.94/x
  3. Step 3: Cross multiply
    90,877.21x = 125,515.52 × 60,609.94
  4. Step 4: Simplify right side
    90,877.21x = 7,607,488,136.27
  5. Step 5: Solve for x
    x = 7,607,488,136.27/90,877.21
  6. Step 6: Final answer
    x = 83,711.73

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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.