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Finding the Fourth Proportional to 52,260.60, 78,368.22 and 18,969.60

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Solution

The fourth proportional to 52,260.60, 78,368.22 and 18,969.60 is: 28,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,260.60 : 78,368.22 = 18,969.60 : x
  2. Step 2: Convert to fraction form
    52,260.60/78,368.22 = 18,969.60/x
  3. Step 3: Cross multiply
    52,260.60x = 78,368.22 × 18,969.60
  4. Step 4: Simplify right side
    52,260.60x = 1,486,613,786.11
  5. Step 5: Solve for x
    x = 1,486,613,786.11/52,260.60
  6. Step 6: Final answer
    x = 28,446.17

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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.