Home / 57,539.86-79,450.05-45,000.34

Finding the Fourth Proportional to 57,539.86, 79,450.05 and 45,000.34

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Solution

The fourth proportional to 57,539.86, 79,450.05 and 45,000.34 is: 62,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,539.86 : 79,450.05 = 45,000.34 : x
  2. Step 2: Convert to fraction form
    57,539.86/79,450.05 = 45,000.34/x
  3. Step 3: Cross multiply
    57,539.86x = 79,450.05 × 45,000.34
  4. Step 4: Simplify right side
    57,539.86x = 3,575,279,263.02
  5. Step 5: Solve for x
    x = 3,575,279,263.02/57,539.86
  6. Step 6: Final answer
    x = 62,135.70

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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.