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Finding the Fourth Proportional to 56,522.88, 84,628.80 and 42,629.76

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Solution

The fourth proportional to 56,522.88, 84,628.80 and 42,629.76 is: 63,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,522.88 : 84,628.80 = 42,629.76 : x
  2. Step 2: Convert to fraction form
    56,522.88/84,628.80 = 42,629.76/x
  3. Step 3: Cross multiply
    56,522.88x = 84,628.80 × 42,629.76
  4. Step 4: Simplify right side
    56,522.88x = 3,607,705,433.09
  5. Step 5: Solve for x
    x = 3,607,705,433.09/56,522.88
  6. Step 6: Final answer
    x = 63,827.35

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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.