Home / 85,144.24-127,585.06-53,913.88

Finding the Fourth Proportional to 85,144.24, 127,585.06 and 53,913.88

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Solution

The fourth proportional to 85,144.24, 127,585.06 and 53,913.88 is: 80,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.24 : 127,585.06 = 53,913.88 : x
  2. Step 2: Convert to fraction form
    85,144.24/127,585.06 = 53,913.88/x
  3. Step 3: Cross multiply
    85,144.24x = 127,585.06 × 53,913.88
  4. Step 4: Simplify right side
    85,144.24x = 6,878,605,614.63
  5. Step 5: Solve for x
    x = 6,878,605,614.63/85,144.24
  6. Step 6: Final answer
    x = 80,787.68

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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.