Home / 57,037.76-78,712.63-31,542.81

Finding the Fourth Proportional to 57,037.76, 78,712.63 and 31,542.81

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Solution

The fourth proportional to 57,037.76, 78,712.63 and 31,542.81 is: 43,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.76 : 78,712.63 = 31,542.81 : x
  2. Step 2: Convert to fraction form
    57,037.76/78,712.63 = 31,542.81/x
  3. Step 3: Cross multiply
    57,037.76x = 78,712.63 × 31,542.81
  4. Step 4: Simplify right side
    57,037.76x = 2,482,817,532.69
  5. Step 5: Solve for x
    x = 2,482,817,532.69/57,037.76
  6. Step 6: Final answer
    x = 43,529.37

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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.