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Finding the Fourth Proportional to 74,396.60, 102,707.34 and 57,363.50

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Solution

The fourth proportional to 74,396.60, 102,707.34 and 57,363.50 is: 79,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,396.60 : 102,707.34 = 57,363.50 : x
  2. Step 2: Convert to fraction form
    74,396.60/102,707.34 = 57,363.50/x
  3. Step 3: Cross multiply
    74,396.60x = 102,707.34 × 57,363.50
  4. Step 4: Simplify right side
    74,396.60x = 5,891,652,498.09
  5. Step 5: Solve for x
    x = 5,891,652,498.09/74,396.60
  6. Step 6: Final answer
    x = 79,192.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.