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Finding the Fourth Proportional to 70,710.17, 106,064.97 and 28,589.74

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Solution

The fourth proportional to 70,710.17, 106,064.97 and 28,589.74 is: 42,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,710.17 : 106,064.97 = 28,589.74 : x
  2. Step 2: Convert to fraction form
    70,710.17/106,064.97 = 28,589.74/x
  3. Step 3: Cross multiply
    70,710.17x = 106,064.97 × 28,589.74
  4. Step 4: Simplify right side
    70,710.17x = 3,032,370,300.47
  5. Step 5: Solve for x
    x = 3,032,370,300.47/70,710.17
  6. Step 6: Final answer
    x = 42,884.50

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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.