Home / 48,261.20-72,358.05-28,529.60

Finding the Fourth Proportional to 48,261.20, 72,358.05 and 28,529.60

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Solution

The fourth proportional to 48,261.20, 72,358.05 and 28,529.60 is: 42,774.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,261.20 : 72,358.05 = 28,529.60 : x
  2. Step 2: Convert to fraction form
    48,261.20/72,358.05 = 28,529.60/x
  3. Step 3: Cross multiply
    48,261.20x = 72,358.05 × 28,529.60
  4. Step 4: Simplify right side
    48,261.20x = 2,064,346,223.28
  5. Step 5: Solve for x
    x = 2,064,346,223.28/48,261.20
  6. Step 6: Final answer
    x = 42,774.45

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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.