Home / 56,986.32-78,640.68-31,494.40

Finding the Fourth Proportional to 56,986.32, 78,640.68 and 31,494.40

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Solution

The fourth proportional to 56,986.32, 78,640.68 and 31,494.40 is: 43,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.32 : 78,640.68 = 31,494.40 : x
  2. Step 2: Convert to fraction form
    56,986.32/78,640.68 = 31,494.40/x
  3. Step 3: Cross multiply
    56,986.32x = 78,640.68 × 31,494.40
  4. Step 4: Simplify right side
    56,986.32x = 2,476,741,032.19
  5. Step 5: Solve for x
    x = 2,476,741,032.19/56,986.32
  6. Step 6: Final answer
    x = 43,462.03

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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.