Home / 56,899.38-78,521.07-31,748.88

Finding the Fourth Proportional to 56,899.38, 78,521.07 and 31,748.88

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Solution

The fourth proportional to 56,899.38, 78,521.07 and 31,748.88 is: 43,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,899.38 : 78,521.07 = 31,748.88 : x
  2. Step 2: Convert to fraction form
    56,899.38/78,521.07 = 31,748.88/x
  3. Step 3: Cross multiply
    56,899.38x = 78,521.07 × 31,748.88
  4. Step 4: Simplify right side
    56,899.38x = 2,492,956,028.90
  5. Step 5: Solve for x
    x = 2,492,956,028.90/56,899.38
  6. Step 6: Final answer
    x = 43,813.41

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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.