Home / 56,725.26-78,276.15-31,576.38

Finding the Fourth Proportional to 56,725.26, 78,276.15 and 31,576.38

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Solution

The fourth proportional to 56,725.26, 78,276.15 and 31,576.38 is: 43,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.26 : 78,276.15 = 31,576.38 : x
  2. Step 2: Convert to fraction form
    56,725.26/78,276.15 = 31,576.38/x
  3. Step 3: Cross multiply
    56,725.26x = 78,276.15 × 31,576.38
  4. Step 4: Simplify right side
    56,725.26x = 2,471,677,457.34
  5. Step 5: Solve for x
    x = 2,471,677,457.34/56,725.26
  6. Step 6: Final answer
    x = 43,572.78

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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.