Home / 97,890.76-146,816.70-47,949.40

Finding the Fourth Proportional to 97,890.76, 146,816.70 and 47,949.40

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Solution

The fourth proportional to 97,890.76, 146,816.70 and 47,949.40 is: 71,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,890.76 : 146,816.70 = 47,949.40 : x
  2. Step 2: Convert to fraction form
    97,890.76/146,816.70 = 47,949.40/x
  3. Step 3: Cross multiply
    97,890.76x = 146,816.70 × 47,949.40
  4. Step 4: Simplify right side
    97,890.76x = 7,039,772,674.98
  5. Step 5: Solve for x
    x = 7,039,772,674.98/97,890.76
  6. Step 6: Final answer
    x = 71,914.58

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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.