Home / 91,371.12-126,096.96-55,555.20

Finding the Fourth Proportional to 91,371.12, 126,096.96 and 55,555.20

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Solution

The fourth proportional to 91,371.12, 126,096.96 and 55,555.20 is: 76,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,371.12 : 126,096.96 = 55,555.20 : x
  2. Step 2: Convert to fraction form
    91,371.12/126,096.96 = 55,555.20/x
  3. Step 3: Cross multiply
    91,371.12x = 126,096.96 × 55,555.20
  4. Step 4: Simplify right side
    91,371.12x = 7,005,341,832.19
  5. Step 5: Solve for x
    x = 7,005,341,832.19/91,371.12
  6. Step 6: Final answer
    x = 76,669.10

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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.