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Finding the Fourth Proportional to 52,908.30, 79,362.45 and 52,130.70

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Solution

The fourth proportional to 52,908.30, 79,362.45 and 52,130.70 is: 78,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,908.30 : 79,362.45 = 52,130.70 : x
  2. Step 2: Convert to fraction form
    52,908.30/79,362.45 = 52,130.70/x
  3. Step 3: Cross multiply
    52,908.30x = 79,362.45 × 52,130.70
  4. Step 4: Simplify right side
    52,908.30x = 4,137,220,072.22
  5. Step 5: Solve for x
    x = 4,137,220,072.22/52,908.30
  6. Step 6: Final answer
    x = 78,196.05

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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.