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Finding the Fourth Proportional to 70,776.25, 106,011.25 and 33,280.13

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Solution

The fourth proportional to 70,776.25, 106,011.25 and 33,280.13 is: 49,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776.25 : 106,011.25 = 33,280.13 : x
  2. Step 2: Convert to fraction form
    70,776.25/106,011.25 = 33,280.13/x
  3. Step 3: Cross multiply
    70,776.25x = 106,011.25 × 33,280.13
  4. Step 4: Simplify right side
    70,776.25x = 3,528,068,363.29
  5. Step 5: Solve for x
    x = 3,528,068,363.29/70,776.25
  6. Step 6: Final answer
    x = 49,848.20

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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.