Home / 56,124.66-84,162.18-21,039.72

Finding the Fourth Proportional to 56,124.66, 84,162.18 and 21,039.72

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Solution

The fourth proportional to 56,124.66, 84,162.18 and 21,039.72 is: 31,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,124.66 : 84,162.18 = 21,039.72 : x
  2. Step 2: Convert to fraction form
    56,124.66/84,162.18 = 21,039.72/x
  3. Step 3: Cross multiply
    56,124.66x = 84,162.18 × 21,039.72
  4. Step 4: Simplify right side
    56,124.66x = 1,770,748,701.79
  5. Step 5: Solve for x
    x = 1,770,748,701.79/56,124.66
  6. Step 6: Final answer
    x = 31,550.28

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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.