Home / 70,327.66-105,490.68-28,218.46

Finding the Fourth Proportional to 70,327.66, 105,490.68 and 28,218.46

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Solution

The fourth proportional to 70,327.66, 105,490.68 and 28,218.46 is: 42,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,327.66 : 105,490.68 = 28,218.46 : x
  2. Step 2: Convert to fraction form
    70,327.66/105,490.68 = 28,218.46/x
  3. Step 3: Cross multiply
    70,327.66x = 105,490.68 × 28,218.46
  4. Step 4: Simplify right side
    70,327.66x = 2,976,784,533.95
  5. Step 5: Solve for x
    x = 2,976,784,533.95/70,327.66
  6. Step 6: Final answer
    x = 42,327.36

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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.