Home / 70,888.40-106,246.20-31,403.60

Finding the Fourth Proportional to 70,888.40, 106,246.20 and 31,403.60

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Solution

The fourth proportional to 70,888.40, 106,246.20 and 31,403.60 is: 47,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888.40 : 106,246.20 = 31,403.60 : x
  2. Step 2: Convert to fraction form
    70,888.40/106,246.20 = 31,403.60/x
  3. Step 3: Cross multiply
    70,888.40x = 106,246.20 × 31,403.60
  4. Step 4: Simplify right side
    70,888.40x = 3,336,513,166.32
  5. Step 5: Solve for x
    x = 3,336,513,166.32/70,888.40
  6. Step 6: Final answer
    x = 47,067.12

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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.