Home / 78,856.03-118,283.44-19,691.30

Finding the Fourth Proportional to 78,856.03, 118,283.44 and 19,691.30

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Solution

The fourth proportional to 78,856.03, 118,283.44 and 19,691.30 is: 29,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,856.03 : 118,283.44 = 19,691.30 : x
  2. Step 2: Convert to fraction form
    78,856.03/118,283.44 = 19,691.30/x
  3. Step 3: Cross multiply
    78,856.03x = 118,283.44 × 19,691.30
  4. Step 4: Simplify right side
    78,856.03x = 2,329,154,702.07
  5. Step 5: Solve for x
    x = 2,329,154,702.07/78,856.03
  6. Step 6: Final answer
    x = 29,536.80

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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.