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Finding the Fourth Proportional to 52,490.97, 78,648.80 and 36,880.65

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Solution

The fourth proportional to 52,490.97, 78,648.80 and 36,880.65 is: 55,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,490.97 : 78,648.80 = 36,880.65 : x
  2. Step 2: Convert to fraction form
    52,490.97/78,648.80 = 36,880.65/x
  3. Step 3: Cross multiply
    52,490.97x = 78,648.80 × 36,880.65
  4. Step 4: Simplify right side
    52,490.97x = 2,900,618,681.32
  5. Step 5: Solve for x
    x = 2,900,618,681.32/52,490.97
  6. Step 6: Final answer
    x = 55,259.38

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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.