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Finding the Fourth Proportional to 50,415.60, 75,623.40 and 43,417.20

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Solution

The fourth proportional to 50,415.60, 75,623.40 and 43,417.20 is: 65,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,415.60 : 75,623.40 = 43,417.20 : x
  2. Step 2: Convert to fraction form
    50,415.60/75,623.40 = 43,417.20/x
  3. Step 3: Cross multiply
    50,415.60x = 75,623.40 × 43,417.20
  4. Step 4: Simplify right side
    50,415.60x = 3,283,356,282.48
  5. Step 5: Solve for x
    x = 3,283,356,282.48/50,415.60
  6. Step 6: Final answer
    x = 65,125.80

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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.