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Finding the Fourth Proportional to 69,036.84, 103,389.15 and 39,364.71

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Solution

The fourth proportional to 69,036.84, 103,389.15 and 39,364.71 is: 58,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,036.84 : 103,389.15 = 39,364.71 : x
  2. Step 2: Convert to fraction form
    69,036.84/103,389.15 = 39,364.71/x
  3. Step 3: Cross multiply
    69,036.84x = 103,389.15 × 39,364.71
  4. Step 4: Simplify right side
    69,036.84x = 4,069,883,906.90
  5. Step 5: Solve for x
    x = 4,069,883,906.90/69,036.84
  6. Step 6: Final answer
    x = 58,952.35

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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.