Home / 57,288.87-79,091.55-38,163.51

Finding the Fourth Proportional to 57,288.87, 79,091.55 and 38,163.51

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Solution

The fourth proportional to 57,288.87, 79,091.55 and 38,163.51 is: 52,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.87 : 79,091.55 = 38,163.51 : x
  2. Step 2: Convert to fraction form
    57,288.87/79,091.55 = 38,163.51/x
  3. Step 3: Cross multiply
    57,288.87x = 79,091.55 × 38,163.51
  4. Step 4: Simplify right side
    57,288.87x = 3,018,411,159.34
  5. Step 5: Solve for x
    x = 3,018,411,159.34/57,288.87
  6. Step 6: Final answer
    x = 52,687.57

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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.