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Finding the Fourth Proportional to 70,398.11, 105,597.61 and 17,807.58

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Solution

The fourth proportional to 70,398.11, 105,597.61 and 17,807.58 is: 26,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.11 : 105,597.61 = 17,807.58 : x
  2. Step 2: Convert to fraction form
    70,398.11/105,597.61 = 17,807.58/x
  3. Step 3: Cross multiply
    70,398.11x = 105,597.61 × 17,807.58
  4. Step 4: Simplify right side
    70,398.11x = 1,880,437,843.36
  5. Step 5: Solve for x
    x = 1,880,437,843.36/70,398.11
  6. Step 6: Final answer
    x = 26,711.48

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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.