Home / 91,457.16-126,202.32-56,998.68

Finding the Fourth Proportional to 91,457.16, 126,202.32 and 56,998.68

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Solution

The fourth proportional to 91,457.16, 126,202.32 and 56,998.68 is: 78,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,457.16 : 126,202.32 = 56,998.68 : x
  2. Step 2: Convert to fraction form
    91,457.16/126,202.32 = 56,998.68/x
  3. Step 3: Cross multiply
    91,457.16x = 126,202.32 × 56,998.68
  4. Step 4: Simplify right side
    91,457.16x = 7,193,365,652.94
  5. Step 5: Solve for x
    x = 7,193,365,652.94/91,457.16
  6. Step 6: Final answer
    x = 78,652.84

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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.