Home / 57,023.25-78,690.45-31,529.17

Finding the Fourth Proportional to 57,023.25, 78,690.45 and 31,529.17

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Solution

The fourth proportional to 57,023.25, 78,690.45 and 31,529.17 is: 43,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,023.25 : 78,690.45 = 31,529.17 : x
  2. Step 2: Convert to fraction form
    57,023.25/78,690.45 = 31,529.17/x
  3. Step 3: Cross multiply
    57,023.25x = 78,690.45 × 31,529.17
  4. Step 4: Simplify right side
    57,023.25x = 2,481,044,575.43
  5. Step 5: Solve for x
    x = 2,481,044,575.43/57,023.25
  6. Step 6: Final answer
    x = 43,509.35

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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.