Home / 70,000.12-104,981.46-47,809.72

Finding the Fourth Proportional to 70,000.12, 104,981.46 and 47,809.72

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Solution

The fourth proportional to 70,000.12, 104,981.46 and 47,809.72 is: 71,701.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.12 : 104,981.46 = 47,809.72 : x
  2. Step 2: Convert to fraction form
    70,000.12/104,981.46 = 47,809.72/x
  3. Step 3: Cross multiply
    70,000.12x = 104,981.46 × 47,809.72
  4. Step 4: Simplify right side
    70,000.12x = 5,019,134,207.79
  5. Step 5: Solve for x
    x = 5,019,134,207.79/70,000.12
  6. Step 6: Final answer
    x = 71,701.79

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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.