Home / 51,644.45-71,284.61-30,430.55

Finding the Fourth Proportional to 51,644.45, 71,284.61 and 30,430.55

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Solution

The fourth proportional to 51,644.45, 71,284.61 and 30,430.55 is: 42,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,644.45 : 71,284.61 = 30,430.55 : x
  2. Step 2: Convert to fraction form
    51,644.45/71,284.61 = 30,430.55/x
  3. Step 3: Cross multiply
    51,644.45x = 71,284.61 × 30,430.55
  4. Step 4: Simplify right side
    51,644.45x = 2,169,229,888.84
  5. Step 5: Solve for x
    x = 2,169,229,888.84/51,644.45
  6. Step 6: Final answer
    x = 42,003.16

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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.