Home / 56,269.40-84,392.64-20,718.56

Finding the Fourth Proportional to 56,269.40, 84,392.64 and 20,718.56

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Solution

The fourth proportional to 56,269.40, 84,392.64 and 20,718.56 is: 31,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,269.40 : 84,392.64 = 20,718.56 : x
  2. Step 2: Convert to fraction form
    56,269.40/84,392.64 = 20,718.56/x
  3. Step 3: Cross multiply
    56,269.40x = 84,392.64 × 20,718.56
  4. Step 4: Simplify right side
    56,269.40x = 1,748,493,975.40
  5. Step 5: Solve for x
    x = 1,748,493,975.40/56,269.40
  6. Step 6: Final answer
    x = 31,073.62

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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.