Home / 82,971.78-124,457.46-66,253.50

Finding the Fourth Proportional to 82,971.78, 124,457.46 and 66,253.50

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Solution

The fourth proportional to 82,971.78, 124,457.46 and 66,253.50 is: 99,380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,971.78 : 124,457.46 = 66,253.50 : x
  2. Step 2: Convert to fraction form
    82,971.78/124,457.46 = 66,253.50/x
  3. Step 3: Cross multiply
    82,971.78x = 124,457.46 × 66,253.50
  4. Step 4: Simplify right side
    82,971.78x = 8,245,742,326.11
  5. Step 5: Solve for x
    x = 8,245,742,326.11/82,971.78
  6. Step 6: Final answer
    x = 99,380.08

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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.