Home / 55,810.09-83,720.45-18,370.50

Finding the Fourth Proportional to 55,810.09, 83,720.45 and 18,370.50

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Solution

The fourth proportional to 55,810.09, 83,720.45 and 18,370.50 is: 27,557.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.09 : 83,720.45 = 18,370.50 : x
  2. Step 2: Convert to fraction form
    55,810.09/83,720.45 = 18,370.50/x
  3. Step 3: Cross multiply
    55,810.09x = 83,720.45 × 18,370.50
  4. Step 4: Simplify right side
    55,810.09x = 1,537,986,526.73
  5. Step 5: Solve for x
    x = 1,537,986,526.73/55,810.09
  6. Step 6: Final answer
    x = 27,557.50

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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.