Home / 70,768.28-106,152.73-31,325.74

Finding the Fourth Proportional to 70,768.28, 106,152.73 and 31,325.74

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Solution

The fourth proportional to 70,768.28, 106,152.73 and 31,325.74 is: 46,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,768.28 : 106,152.73 = 31,325.74 : x
  2. Step 2: Convert to fraction form
    70,768.28/106,152.73 = 31,325.74/x
  3. Step 3: Cross multiply
    70,768.28x = 106,152.73 × 31,325.74
  4. Step 4: Simplify right side
    70,768.28x = 3,325,312,476.57
  5. Step 5: Solve for x
    x = 3,325,312,476.57/70,768.28
  6. Step 6: Final answer
    x = 46,988.74

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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.