Home / 70,631.52-105,924.60-31,187.76

Finding the Fourth Proportional to 70,631.52, 105,924.60 and 31,187.76

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Solution

The fourth proportional to 70,631.52, 105,924.60 and 31,187.76 is: 46,771.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,631.52 : 105,924.60 = 31,187.76 : x
  2. Step 2: Convert to fraction form
    70,631.52/105,924.60 = 31,187.76/x
  3. Step 3: Cross multiply
    70,631.52x = 105,924.60 × 31,187.76
  4. Step 4: Simplify right side
    70,631.52x = 3,303,551,002.90
  5. Step 5: Solve for x
    x = 3,303,551,002.90/70,631.52
  6. Step 6: Final answer
    x = 46,771.63

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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.