Home / 45,284.02-67,916.31-28,408.90

Finding the Fourth Proportional to 45,284.02, 67,916.31 and 28,408.90

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Solution

The fourth proportional to 45,284.02, 67,916.31 and 28,408.90 is: 42,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,284.02 : 67,916.31 = 28,408.90 : x
  2. Step 2: Convert to fraction form
    45,284.02/67,916.31 = 28,408.90/x
  3. Step 3: Cross multiply
    45,284.02x = 67,916.31 × 28,408.90
  4. Step 4: Simplify right side
    45,284.02x = 1,929,427,659.16
  5. Step 5: Solve for x
    x = 1,929,427,659.16/45,284.02
  6. Step 6: Final answer
    x = 42,607.25

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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.