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Finding the Fourth Proportional to 52,245.60, 78,368.40 and 12,803.10

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Solution

The fourth proportional to 52,245.60, 78,368.40 and 12,803.10 is: 19,204.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,245.60 : 78,368.40 = 12,803.10 : x
  2. Step 2: Convert to fraction form
    52,245.60/78,368.40 = 12,803.10/x
  3. Step 3: Cross multiply
    52,245.60x = 78,368.40 × 12,803.10
  4. Step 4: Simplify right side
    52,245.60x = 1,003,358,462.04
  5. Step 5: Solve for x
    x = 1,003,358,462.04/52,245.60
  6. Step 6: Final answer
    x = 19,204.65

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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.