Home / 51,990.30-71,681.49-43,388.80

Finding the Fourth Proportional to 51,990.30, 71,681.49 and 43,388.80

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Solution

The fourth proportional to 51,990.30, 71,681.49 and 43,388.80 is: 59,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,990.30 : 71,681.49 = 43,388.80 : x
  2. Step 2: Convert to fraction form
    51,990.30/71,681.49 = 43,388.80/x
  3. Step 3: Cross multiply
    51,990.30x = 71,681.49 × 43,388.80
  4. Step 4: Simplify right side
    51,990.30x = 3,110,173,654.11
  5. Step 5: Solve for x
    x = 3,110,173,654.11/51,990.30
  6. Step 6: Final answer
    x = 59,822.19

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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.