Home / 56,120.96-84,178.72-21,057.84

Finding the Fourth Proportional to 56,120.96, 84,178.72 and 21,057.84

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Solution

The fourth proportional to 56,120.96, 84,178.72 and 21,057.84 is: 31,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,120.96 : 84,178.72 = 21,057.84 : x
  2. Step 2: Convert to fraction form
    56,120.96/84,178.72 = 21,057.84/x
  3. Step 3: Cross multiply
    56,120.96x = 84,178.72 × 21,057.84
  4. Step 4: Simplify right side
    56,120.96x = 1,772,622,017.16
  5. Step 5: Solve for x
    x = 1,772,622,017.16/56,120.96
  6. Step 6: Final answer
    x = 31,585.74

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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.