Home / 53,431.16-80,152.08-18,366.20

Finding the Fourth Proportional to 53,431.16, 80,152.08 and 18,366.20

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Solution

The fourth proportional to 53,431.16, 80,152.08 and 18,366.20 is: 27,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.16 : 80,152.08 = 18,366.20 : x
  2. Step 2: Convert to fraction form
    53,431.16/80,152.08 = 18,366.20/x
  3. Step 3: Cross multiply
    53,431.16x = 80,152.08 × 18,366.20
  4. Step 4: Simplify right side
    53,431.16x = 1,472,089,131.70
  5. Step 5: Solve for x
    x = 1,472,089,131.70/53,431.16
  6. Step 6: Final answer
    x = 27,551.14

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1.5x scale

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.