Home / 56,936.34-78,572.16-31,785.84

Finding the Fourth Proportional to 56,936.34, 78,572.16 and 31,785.84

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Solution

The fourth proportional to 56,936.34, 78,572.16 and 31,785.84 is: 43,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,936.34 : 78,572.16 = 31,785.84 : x
  2. Step 2: Convert to fraction form
    56,936.34/78,572.16 = 31,785.84/x
  3. Step 3: Cross multiply
    56,936.34x = 78,572.16 × 31,785.84
  4. Step 4: Simplify right side
    56,936.34x = 2,497,482,106.21
  5. Step 5: Solve for x
    x = 2,497,482,106.21/56,936.34
  6. Step 6: Final answer
    x = 43,864.47

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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.