Home / 53,430.24-80,118.80-28,463.60

Finding the Fourth Proportional to 53,430.24, 80,118.80 and 28,463.60

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Solution

The fourth proportional to 53,430.24, 80,118.80 and 28,463.60 is: 42,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.24 : 80,118.80 = 28,463.60 : x
  2. Step 2: Convert to fraction form
    53,430.24/80,118.80 = 28,463.60/x
  3. Step 3: Cross multiply
    53,430.24x = 80,118.80 × 28,463.60
  4. Step 4: Simplify right side
    53,430.24x = 2,280,469,475.68
  5. Step 5: Solve for x
    x = 2,280,469,475.68/53,430.24
  6. Step 6: Final answer
    x = 42,681.25

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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.