Home / 78,722.16-118,057.60-26,117.52

Finding the Fourth Proportional to 78,722.16, 118,057.60 and 26,117.52

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Solution

The fourth proportional to 78,722.16, 118,057.60 and 26,117.52 is: 39,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,722.16 : 118,057.60 = 26,117.52 : x
  2. Step 2: Convert to fraction form
    78,722.16/118,057.60 = 26,117.52/x
  3. Step 3: Cross multiply
    78,722.16x = 118,057.60 × 26,117.52
  4. Step 4: Simplify right side
    78,722.16x = 3,083,371,729.15
  5. Step 5: Solve for x
    x = 3,083,371,729.15/78,722.16
  6. Step 6: Final answer
    x = 39,167.77

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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.