Home / 48,124.80-72,110.40-40,291.20

Finding the Fourth Proportional to 48,124.80, 72,110.40 and 40,291.20

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Solution

The fourth proportional to 48,124.80, 72,110.40 and 40,291.20 is: 60,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,124.80 : 72,110.40 = 40,291.20 : x
  2. Step 2: Convert to fraction form
    48,124.80/72,110.40 = 40,291.20/x
  3. Step 3: Cross multiply
    48,124.80x = 72,110.40 × 40,291.20
  4. Step 4: Simplify right side
    48,124.80x = 2,905,414,548.48
  5. Step 5: Solve for x
    x = 2,905,414,548.48/48,124.80
  6. Step 6: Final answer
    x = 60,372.50

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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.