Home / 52,070.64-78,105.98-12,627.75

Finding the Fourth Proportional to 52,070.64, 78,105.98 and 12,627.75

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Solution

The fourth proportional to 52,070.64, 78,105.98 and 12,627.75 is: 18,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,070.64 : 78,105.98 = 12,627.75 : x
  2. Step 2: Convert to fraction form
    52,070.64/78,105.98 = 12,627.75/x
  3. Step 3: Cross multiply
    52,070.64x = 78,105.98 × 12,627.75
  4. Step 4: Simplify right side
    52,070.64x = 986,302,725.81
  5. Step 5: Solve for x
    x = 986,302,725.81/52,070.64
  6. Step 6: Final answer
    x = 18,941.63

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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.