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Finding the Fourth Proportional to 57,261.60, 79,200.72 and 50,637.60

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Solution

The fourth proportional to 57,261.60, 79,200.72 and 50,637.60 is: 70,038.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261.60 : 79,200.72 = 50,637.60 : x
  2. Step 2: Convert to fraction form
    57,261.60/79,200.72 = 50,637.60/x
  3. Step 3: Cross multiply
    57,261.60x = 79,200.72 × 50,637.60
  4. Step 4: Simplify right side
    57,261.60x = 4,010,534,379.07
  5. Step 5: Solve for x
    x = 4,010,534,379.07/57,261.60
  6. Step 6: Final answer
    x = 70,038.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.