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Finding the Fourth Proportional to 56,143.30, 84,312.15 and 29,899.30

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Solution

The fourth proportional to 56,143.30, 84,312.15 and 29,899.30 is: 44,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,143.30 : 84,312.15 = 29,899.30 : x
  2. Step 2: Convert to fraction form
    56,143.30/84,312.15 = 29,899.30/x
  3. Step 3: Cross multiply
    56,143.30x = 84,312.15 × 29,899.30
  4. Step 4: Simplify right side
    56,143.30x = 2,520,874,266.50
  5. Step 5: Solve for x
    x = 2,520,874,266.50/56,143.30
  6. Step 6: Final answer
    x = 44,900.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.