Home / 65,981.40-98,837.70-40,944.60

Finding the Fourth Proportional to 65,981.40, 98,837.70 and 40,944.60

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Solution

The fourth proportional to 65,981.40, 98,837.70 and 40,944.60 is: 61,333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,981.40 : 98,837.70 = 40,944.60 : x
  2. Step 2: Convert to fraction form
    65,981.40/98,837.70 = 40,944.60/x
  3. Step 3: Cross multiply
    65,981.40x = 98,837.70 × 40,944.60
  4. Step 4: Simplify right side
    65,981.40x = 4,046,870,091.42
  5. Step 5: Solve for x
    x = 4,046,870,091.42/65,981.40
  6. Step 6: Final answer
    x = 61,333.50

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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.