Home / 55,431.91-83,135.71-15,980.45

Finding the Fourth Proportional to 55,431.91, 83,135.71 and 15,980.45

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Solution

The fourth proportional to 55,431.91, 83,135.71 and 15,980.45 is: 23,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,431.91 : 83,135.71 = 15,980.45 : x
  2. Step 2: Convert to fraction form
    55,431.91/83,135.71 = 15,980.45/x
  3. Step 3: Cross multiply
    55,431.91x = 83,135.71 × 15,980.45
  4. Step 4: Simplify right side
    55,431.91x = 1,328,546,056.87
  5. Step 5: Solve for x
    x = 1,328,546,056.87/55,431.91
  6. Step 6: Final answer
    x = 23,967.17

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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.