Home / 56,900.28-78,522.40-31,749.76

Finding the Fourth Proportional to 56,900.28, 78,522.40 and 31,749.76

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Solution

The fourth proportional to 56,900.28, 78,522.40 and 31,749.76 is: 43,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.28 : 78,522.40 = 31,749.76 : x
  2. Step 2: Convert to fraction form
    56,900.28/78,522.40 = 31,749.76/x
  3. Step 3: Cross multiply
    56,900.28x = 78,522.40 × 31,749.76
  4. Step 4: Simplify right side
    56,900.28x = 2,493,067,354.62
  5. Step 5: Solve for x
    x = 2,493,067,354.62/56,900.28
  6. Step 6: Final answer
    x = 43,814.68

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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.