Home / 55,316.16-76,334.40-31,443.84

Finding the Fourth Proportional to 55,316.16, 76,334.40 and 31,443.84

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Solution

The fourth proportional to 55,316.16, 76,334.40 and 31,443.84 is: 43,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,316.16 : 76,334.40 = 31,443.84 : x
  2. Step 2: Convert to fraction form
    55,316.16/76,334.40 = 31,443.84/x
  3. Step 3: Cross multiply
    55,316.16x = 76,334.40 × 31,443.84
  4. Step 4: Simplify right side
    55,316.16x = 2,400,246,660.10
  5. Step 5: Solve for x
    x = 2,400,246,660.10/55,316.16
  6. Step 6: Final answer
    x = 43,391.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.