Home / 74,358.57-111,402.53-66,386.95

Finding the Fourth Proportional to 74,358.57, 111,402.53 and 66,386.95

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Solution

The fourth proportional to 74,358.57, 111,402.53 and 66,386.95 is: 99,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,358.57 : 111,402.53 = 66,386.95 : x
  2. Step 2: Convert to fraction form
    74,358.57/111,402.53 = 66,386.95/x
  3. Step 3: Cross multiply
    74,358.57x = 111,402.53 × 66,386.95
  4. Step 4: Simplify right side
    74,358.57x = 7,395,674,188.98
  5. Step 5: Solve for x
    x = 7,395,674,188.98/74,358.57
  6. Step 6: Final answer
    x = 99,459.61

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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.