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Finding the Fourth Proportional to 53,551.89, 73,900.35 and 30,890.93

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Solution

The fourth proportional to 53,551.89, 73,900.35 and 30,890.93 is: 42,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,551.89 : 73,900.35 = 30,890.93 : x
  2. Step 2: Convert to fraction form
    53,551.89/73,900.35 = 30,890.93/x
  3. Step 3: Cross multiply
    53,551.89x = 73,900.35 × 30,890.93
  4. Step 4: Simplify right side
    53,551.89x = 2,282,850,169.32
  5. Step 5: Solve for x
    x = 2,282,850,169.32/53,551.89
  6. Step 6: Final answer
    x = 42,628.75

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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.