Home / 74,986.47-112,476.87-18,827.01

Finding the Fourth Proportional to 74,986.47, 112,476.87 and 18,827.01

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Solution

The fourth proportional to 74,986.47, 112,476.87 and 18,827.01 is: 28,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.47 : 112,476.87 = 18,827.01 : x
  2. Step 2: Convert to fraction form
    74,986.47/112,476.87 = 18,827.01/x
  3. Step 3: Cross multiply
    74,986.47x = 112,476.87 × 18,827.01
  4. Step 4: Simplify right side
    74,986.47x = 2,117,603,156.26
  5. Step 5: Solve for x
    x = 2,117,603,156.26/74,986.47
  6. Step 6: Final answer
    x = 28,239.80

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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.