Home / 76,390.40-114,558.14-26,457.06

Finding the Fourth Proportional to 76,390.40, 114,558.14 and 26,457.06

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Solution

The fourth proportional to 76,390.40, 114,558.14 and 26,457.06 is: 39,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,390.40 : 114,558.14 = 26,457.06 : x
  2. Step 2: Convert to fraction form
    76,390.40/114,558.14 = 26,457.06/x
  3. Step 3: Cross multiply
    76,390.40x = 114,558.14 × 26,457.06
  4. Step 4: Simplify right side
    76,390.40x = 3,030,871,583.47
  5. Step 5: Solve for x
    x = 3,030,871,583.47/76,390.40
  6. Step 6: Final answer
    x = 39,676.08

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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.