Home / 85,111.97-127,516.28-51,814.89

Finding the Fourth Proportional to 85,111.97, 127,516.28 and 51,814.89

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Solution

The fourth proportional to 85,111.97, 127,516.28 and 51,814.89 is: 77,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,111.97 : 127,516.28 = 51,814.89 : x
  2. Step 2: Convert to fraction form
    85,111.97/127,516.28 = 51,814.89/x
  3. Step 3: Cross multiply
    85,111.97x = 127,516.28 × 51,814.89
  4. Step 4: Simplify right side
    85,111.97x = 6,607,241,762.33
  5. Step 5: Solve for x
    x = 6,607,241,762.33/85,111.97
  6. Step 6: Final answer
    x = 77,630.00

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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.