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Finding the Fourth Proportional to 78,647.01, 117,970.51 and 22,486.67

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Solution

The fourth proportional to 78,647.01, 117,970.51 and 22,486.67 is: 33,730.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,647.01 : 117,970.51 = 22,486.67 : x
  2. Step 2: Convert to fraction form
    78,647.01/117,970.51 = 22,486.67/x
  3. Step 3: Cross multiply
    78,647.01x = 117,970.51 × 22,486.67
  4. Step 4: Simplify right side
    78,647.01x = 2,652,763,520.74
  5. Step 5: Solve for x
    x = 2,652,763,520.74/78,647.01
  6. Step 6: Final answer
    x = 33,730.00

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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.