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Finding the Fourth Proportional to 56,666.66, 84,999.48 and 21,126.77

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Solution

The fourth proportional to 56,666.66, 84,999.48 and 21,126.77 is: 31,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,666.66 : 84,999.48 = 21,126.77 : x
  2. Step 2: Convert to fraction form
    56,666.66/84,999.48 = 21,126.77/x
  3. Step 3: Cross multiply
    56,666.66x = 84,999.48 × 21,126.77
  4. Step 4: Simplify right side
    56,666.66x = 1,795,764,358.45
  5. Step 5: Solve for x
    x = 1,795,764,358.45/56,666.66
  6. Step 6: Final answer
    x = 31,689.96

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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.