Home / 85,144.64-127,585.20-58,503.36

Finding the Fourth Proportional to 85,144.64, 127,585.20 and 58,503.36

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Solution

The fourth proportional to 85,144.64, 127,585.20 and 58,503.36 is: 87,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.64 : 127,585.20 = 58,503.36 : x
  2. Step 2: Convert to fraction form
    85,144.64/127,585.20 = 58,503.36/x
  3. Step 3: Cross multiply
    85,144.64x = 127,585.20 × 58,503.36
  4. Step 4: Simplify right side
    85,144.64x = 7,464,162,886.27
  5. Step 5: Solve for x
    x = 7,464,162,886.27/85,144.64
  6. Step 6: Final answer
    x = 87,664.51

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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.