Home / 57,037.59-78,714.45-31,887.09

Finding the Fourth Proportional to 57,037.59, 78,714.45 and 31,887.09

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Solution

The fourth proportional to 57,037.59, 78,714.45 and 31,887.09 is: 44,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.59 : 78,714.45 = 31,887.09 : x
  2. Step 2: Convert to fraction form
    57,037.59/78,714.45 = 31,887.09/x
  3. Step 3: Cross multiply
    57,037.59x = 78,714.45 × 31,887.09
  4. Step 4: Simplify right side
    57,037.59x = 2,509,974,751.45
  5. Step 5: Solve for x
    x = 2,509,974,751.45/57,037.59
  6. Step 6: Final answer
    x = 44,005.62

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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.