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Finding the Fourth Proportional to 50,430.20, 72,712.80 and 50,430.20

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Solution

The fourth proportional to 50,430.20, 72,712.80 and 50,430.20 is: 72,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,430.20 : 72,712.80 = 50,430.20 : x
  2. Step 2: Convert to fraction form
    50,430.20/72,712.80 = 50,430.20/x
  3. Step 3: Cross multiply
    50,430.20x = 72,712.80 × 50,430.20
  4. Step 4: Simplify right side
    50,430.20x = 3,666,921,046.56
  5. Step 5: Solve for x
    x = 3,666,921,046.56/50,430.20
  6. Step 6: Final answer
    x = 72,712.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.