Home / 70,831.70-97,747.85-39,000.69

Finding the Fourth Proportional to 70,831.70, 97,747.85 and 39,000.69

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Solution

The fourth proportional to 70,831.70, 97,747.85 and 39,000.69 is: 53,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.70 : 97,747.85 = 39,000.69 : x
  2. Step 2: Convert to fraction form
    70,831.70/97,747.85 = 39,000.69/x
  3. Step 3: Cross multiply
    70,831.70x = 97,747.85 × 39,000.69
  4. Step 4: Simplify right side
    70,831.70x = 3,812,232,912.27
  5. Step 5: Solve for x
    x = 3,812,232,912.27/70,831.70
  6. Step 6: Final answer
    x = 53,821.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.