Home / 55,597.81-83,405.36-18,670.45

Finding the Fourth Proportional to 55,597.81, 83,405.36 and 18,670.45

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Solution

The fourth proportional to 55,597.81, 83,405.36 and 18,670.45 is: 28,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,597.81 : 83,405.36 = 18,670.45 : x
  2. Step 2: Convert to fraction form
    55,597.81/83,405.36 = 18,670.45/x
  3. Step 3: Cross multiply
    55,597.81x = 83,405.36 × 18,670.45
  4. Step 4: Simplify right side
    55,597.81x = 1,557,215,812.13
  5. Step 5: Solve for x
    x = 1,557,215,812.13/55,597.81
  6. Step 6: Final answer
    x = 28,008.58

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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.