Home / 53,355.02-73,609.29-30,690.41

Finding the Fourth Proportional to 53,355.02, 73,609.29 and 30,690.41

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Solution

The fourth proportional to 53,355.02, 73,609.29 and 30,690.41 is: 42,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355.02 : 73,609.29 = 30,690.41 : x
  2. Step 2: Convert to fraction form
    53,355.02/73,609.29 = 30,690.41/x
  3. Step 3: Cross multiply
    53,355.02x = 73,609.29 × 30,690.41
  4. Step 4: Simplify right side
    53,355.02x = 2,259,098,921.86
  5. Step 5: Solve for x
    x = 2,259,098,921.86/53,355.02
  6. Step 6: Final answer
    x = 42,340.89

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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.