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Finding the Fourth Proportional to 78,230.63, 117,299.09 and 24,899.57

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Solution

The fourth proportional to 78,230.63, 117,299.09 and 24,899.57 is: 37,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,230.63 : 117,299.09 = 24,899.57 : x
  2. Step 2: Convert to fraction form
    78,230.63/117,299.09 = 24,899.57/x
  3. Step 3: Cross multiply
    78,230.63x = 117,299.09 × 24,899.57
  4. Step 4: Simplify right side
    78,230.63x = 2,920,697,337.76
  5. Step 5: Solve for x
    x = 2,920,697,337.76/78,230.63
  6. Step 6: Final answer
    x = 37,334.45

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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.