Home / 57,124.44-78,758.63-39,188.31

Finding the Fourth Proportional to 57,124.44, 78,758.63 and 39,188.31

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Solution

The fourth proportional to 57,124.44, 78,758.63 and 39,188.31 is: 54,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,124.44 : 78,758.63 = 39,188.31 : x
  2. Step 2: Convert to fraction form
    57,124.44/78,758.63 = 39,188.31/x
  3. Step 3: Cross multiply
    57,124.44x = 78,758.63 × 39,188.31
  4. Step 4: Simplify right side
    57,124.44x = 3,086,417,263.29
  5. Step 5: Solve for x
    x = 3,086,417,263.29/57,124.44
  6. Step 6: Final answer
    x = 54,029.72

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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.