Home / 55,729.80-83,530.31-25,681.20

Finding the Fourth Proportional to 55,729.80, 83,530.31 and 25,681.20

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Solution

The fourth proportional to 55,729.80, 83,530.31 and 25,681.20 is: 38,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,729.80 : 83,530.31 = 25,681.20 : x
  2. Step 2: Convert to fraction form
    55,729.80/83,530.31 = 25,681.20/x
  3. Step 3: Cross multiply
    55,729.80x = 83,530.31 × 25,681.20
  4. Step 4: Simplify right side
    55,729.80x = 2,145,158,597.17
  5. Step 5: Solve for x
    x = 2,145,158,597.17/55,729.80
  6. Step 6: Final answer
    x = 38,492.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.