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Finding the Fourth Proportional to 56,191.84, 84,303.12 and 18,755.20

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Solution

The fourth proportional to 56,191.84, 84,303.12 and 18,755.20 is: 28,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,191.84 : 84,303.12 = 18,755.20 : x
  2. Step 2: Convert to fraction form
    56,191.84/84,303.12 = 18,755.20/x
  3. Step 3: Cross multiply
    56,191.84x = 84,303.12 × 18,755.20
  4. Step 4: Simplify right side
    56,191.84x = 1,581,121,876.22
  5. Step 5: Solve for x
    x = 1,581,121,876.22/56,191.84
  6. Step 6: Final answer
    x = 28,137.93

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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.