Home / 78,622.16-117,911.34-26,035.74

Finding the Fourth Proportional to 78,622.16, 117,911.34 and 26,035.74

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Solution

The fourth proportional to 78,622.16, 117,911.34 and 26,035.74 is: 39,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,622.16 : 117,911.34 = 26,035.74 : x
  2. Step 2: Convert to fraction form
    78,622.16/117,911.34 = 26,035.74/x
  3. Step 3: Cross multiply
    78,622.16x = 117,911.34 × 26,035.74
  4. Step 4: Simplify right side
    78,622.16x = 3,069,908,991.29
  5. Step 5: Solve for x
    x = 3,069,908,991.29/78,622.16
  6. Step 6: Final answer
    x = 39,046.36

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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.