Home / 57,159.84-85,760.39-30,477.77

Finding the Fourth Proportional to 57,159.84, 85,760.39 and 30,477.77

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Solution

The fourth proportional to 57,159.84, 85,760.39 and 30,477.77 is: 45,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,159.84 : 85,760.39 = 30,477.77 : x
  2. Step 2: Convert to fraction form
    57,159.84/85,760.39 = 30,477.77/x
  3. Step 3: Cross multiply
    57,159.84x = 85,760.39 × 30,477.77
  4. Step 4: Simplify right side
    57,159.84x = 2,613,785,239.09
  5. Step 5: Solve for x
    x = 2,613,785,239.09/57,159.84
  6. Step 6: Final answer
    x = 45,727.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.