Home / 57,037.68-78,715.44-31,887.36

Finding the Fourth Proportional to 57,037.68, 78,715.44 and 31,887.36

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Solution

The fourth proportional to 57,037.68, 78,715.44 and 31,887.36 is: 44,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.68 : 78,715.44 = 31,887.36 : x
  2. Step 2: Convert to fraction form
    57,037.68/78,715.44 = 31,887.36/x
  3. Step 3: Cross multiply
    57,037.68x = 78,715.44 × 31,887.36
  4. Step 4: Simplify right side
    57,037.68x = 2,510,027,572.84
  5. Step 5: Solve for x
    x = 2,510,027,572.84/57,037.68
  6. Step 6: Final answer
    x = 44,006.48

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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.