Home / 54,240.72-74,856.36-31,586.76

Finding the Fourth Proportional to 54,240.72, 74,856.36 and 31,586.76

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Solution

The fourth proportional to 54,240.72, 74,856.36 and 31,586.76 is: 43,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,240.72 : 74,856.36 = 31,586.76 : x
  2. Step 2: Convert to fraction form
    54,240.72/74,856.36 = 31,586.76/x
  3. Step 3: Cross multiply
    54,240.72x = 74,856.36 × 31,586.76
  4. Step 4: Simplify right side
    54,240.72x = 2,364,469,877.79
  5. Step 5: Solve for x
    x = 2,364,469,877.79/54,240.72
  6. Step 6: Final answer
    x = 43,592.16

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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.