Home / 57,037.90-78,712.80-31,542.94

Finding the Fourth Proportional to 57,037.90, 78,712.80 and 31,542.94

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Solution

The fourth proportional to 57,037.90, 78,712.80 and 31,542.94 is: 43,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.90 : 78,712.80 = 31,542.94 : x
  2. Step 2: Convert to fraction form
    57,037.90/78,712.80 = 31,542.94/x
  3. Step 3: Cross multiply
    57,037.90x = 78,712.80 × 31,542.94
  4. Step 4: Simplify right side
    57,037.90x = 2,482,833,127.63
  5. Step 5: Solve for x
    x = 2,482,833,127.63/57,037.90
  6. Step 6: Final answer
    x = 43,529.53

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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.