Home / 78,920.06-118,427.27-29,005.20

Finding the Fourth Proportional to 78,920.06, 118,427.27 and 29,005.20

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Solution

The fourth proportional to 78,920.06, 118,427.27 and 29,005.20 is: 43,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,920.06 : 118,427.27 = 29,005.20 : x
  2. Step 2: Convert to fraction form
    78,920.06/118,427.27 = 29,005.20/x
  3. Step 3: Cross multiply
    78,920.06x = 118,427.27 × 29,005.20
  4. Step 4: Simplify right side
    78,920.06x = 3,435,006,506.78
  5. Step 5: Solve for x
    x = 3,435,006,506.78/78,920.06
  6. Step 6: Final answer
    x = 43,525.14

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1.5x scale

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.