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Finding the Fourth Proportional to 56,725.68, 85,011.84 and 40,957.68

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Solution

The fourth proportional to 56,725.68, 85,011.84 and 40,957.68 is: 61,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.68 : 85,011.84 = 40,957.68 : x
  2. Step 2: Convert to fraction form
    56,725.68/85,011.84 = 40,957.68/x
  3. Step 3: Cross multiply
    56,725.68x = 85,011.84 × 40,957.68
  4. Step 4: Simplify right side
    56,725.68x = 3,481,887,738.93
  5. Step 5: Solve for x
    x = 3,481,887,738.93/56,725.68
  6. Step 6: Final answer
    x = 61,381.15

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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.