Home / 70,879.38-106,246.05-31,455.06

Finding the Fourth Proportional to 70,879.38, 106,246.05 and 31,455.06

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Solution

The fourth proportional to 70,879.38, 106,246.05 and 31,455.06 is: 47,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.38 : 106,246.05 = 31,455.06 : x
  2. Step 2: Convert to fraction form
    70,879.38/106,246.05 = 31,455.06/x
  3. Step 3: Cross multiply
    70,879.38x = 106,246.05 × 31,455.06
  4. Step 4: Simplify right side
    70,879.38x = 3,341,975,877.51
  5. Step 5: Solve for x
    x = 3,341,975,877.51/70,879.38
  6. Step 6: Final answer
    x = 47,150.18

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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.