Home / 56,744.64-85,122.72-21,713.76

Finding the Fourth Proportional to 56,744.64, 85,122.72 and 21,713.76

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Solution

The fourth proportional to 56,744.64, 85,122.72 and 21,713.76 is: 32,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,744.64 : 85,122.72 = 21,713.76 : x
  2. Step 2: Convert to fraction form
    56,744.64/85,122.72 = 21,713.76/x
  3. Step 3: Cross multiply
    56,744.64x = 85,122.72 × 21,713.76
  4. Step 4: Simplify right side
    56,744.64x = 1,848,334,312.63
  5. Step 5: Solve for x
    x = 1,848,334,312.63/56,744.64
  6. Step 6: Final answer
    x = 32,572.84

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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.