Home / 57,931.51-86,930.11-31,277.14

Finding the Fourth Proportional to 57,931.51, 86,930.11 and 31,277.14

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Solution

The fourth proportional to 57,931.51, 86,930.11 and 31,277.14 is: 46,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.51 : 86,930.11 = 31,277.14 : x
  2. Step 2: Convert to fraction form
    57,931.51/86,930.11 = 31,277.14/x
  3. Step 3: Cross multiply
    57,931.51x = 86,930.11 × 31,277.14
  4. Step 4: Simplify right side
    57,931.51x = 2,718,925,220.69
  5. Step 5: Solve for x
    x = 2,718,925,220.69/57,931.51
  6. Step 6: Final answer
    x = 46,933.44

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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.