Home / 57,017.16-78,683.49-31,866.66

Finding the Fourth Proportional to 57,017.16, 78,683.49 and 31,866.66

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Solution

The fourth proportional to 57,017.16, 78,683.49 and 31,866.66 is: 43,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,017.16 : 78,683.49 = 31,866.66 : x
  2. Step 2: Convert to fraction form
    57,017.16/78,683.49 = 31,866.66/x
  3. Step 3: Cross multiply
    57,017.16x = 78,683.49 × 31,866.66
  4. Step 4: Simplify right side
    57,017.16x = 2,507,379,864.11
  5. Step 5: Solve for x
    x = 2,507,379,864.11/57,017.16
  6. Step 6: Final answer
    x = 43,975.88

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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.