Home / 85,649.24-128,307.60-63,119

Finding the Fourth Proportional to 85,649.24, 128,307.60 and 63,119

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Solution

The fourth proportional to 85,649.24, 128,307.60 and 63,119 is: 94,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,649.24 : 128,307.60 = 63,119 : x
  2. Step 2: Convert to fraction form
    85,649.24/128,307.60 = 63,119/x
  3. Step 3: Cross multiply
    85,649.24x = 128,307.60 × 63,119
  4. Step 4: Simplify right side
    85,649.24x = 8,098,647,404.40
  5. Step 5: Solve for x
    x = 8,098,647,404.40/85,649.24
  6. Step 6: Final answer
    x = 94,555.98

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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.