Home / 48,342.40-72,513.60-28,610.80

Finding the Fourth Proportional to 48,342.40, 72,513.60 and 28,610.80

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Solution

The fourth proportional to 48,342.40, 72,513.60 and 28,610.80 is: 42,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,342.40 : 72,513.60 = 28,610.80 : x
  2. Step 2: Convert to fraction form
    48,342.40/72,513.60 = 28,610.80/x
  3. Step 3: Cross multiply
    48,342.40x = 72,513.60 × 28,610.80
  4. Step 4: Simplify right side
    48,342.40x = 2,074,672,106.88
  5. Step 5: Solve for x
    x = 2,074,672,106.88/48,342.40
  6. Step 6: Final answer
    x = 42,916.20

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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.